SANAD co Co | Beit Berl Academic College (original) (raw)

Papers by SANAD co Co

Research paper thumbnail of ChemInform Abstract: Organometallic Reactions under Phase-Transfer Conditions

Research paper thumbnail of A simple and mild method for the direct metal-catalyzed carbonylation of allyl alcohols to acids

Journal of Molecular Catalysis, Sep 1, 1989

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Research paper thumbnail of Synthesis of a-methylene-�-lactones by nickel-catalyzed hydrocarboxylation of propargyl alcohols

Research paper thumbnail of Cyclo-oligomerization and rearrangement of some phenylated diynes by the RhCl3Aliquat 336 and by the H2PtCl6Aliquat 336 catalysts under phase transfer conditions

Journal of Molecular Catalysis, 1991

Journal of Molecular Catalysis, 66 (1991) 295-312 295 Cyclo-oligomerization and rearrangement of ... more Journal of Molecular Catalysis, 66 (1991) 295-312 295 Cyclo-oligomerization and rearrangement of some phenylated diynes by the RhC13 Aliquat 336 and by the H2PtClg Aliquat 336 catalysts under phase transfer conditions Yacoub Badrieh, Jochanan Blum* Department of Organic ...

Research paper thumbnail of ChemInform Abstract: Phosphine Oxides as Ligands in the Hydroformylation Reaction

ChemInform, 1996

ABSTRACT ChemInform is a weekly Abstracting Service, delivering concise information at a glance t... more ABSTRACT ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

Research paper thumbnail of ChemInform Abstract: Phosphine Oxides as Ligands in the Hydroformylation Reaction

ABSTRACT ChemInform is a weekly Abstracting Service, delivering concise information at a glance t... more ABSTRACT ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

Research paper thumbnail of ChemInform Abstract: Organometallic Reactions under Phase-Transfer Conditions

Research paper thumbnail of Oligomerization of alkynes by the RhCl3-aliquat 336 catalyst system

Journal of Molecular Catalysis, 1990

The cyclo-oligomerization of several terminal and internal alkynes under phase transfer condition... more The cyclo-oligomerization of several terminal and internal alkynes under phase transfer conditions by the RhCl 3 -Aliquat® 336 catalyst is described. The kinetics of 1-heptyne cyclotrimerization at 90 °C in 1,1,2,2-tetrachloroethane/water were found to follow the second-order rate law ...

Research paper thumbnail of Disproportionation and dehydrogenation of 1,3-cyclohexadienes in the presence of recyclable RhCl3-quaternary ammonium salt catalysts

Journal of Molecular Catalysis, 1988

Research paper thumbnail of A simple and mild method for the direct metal-catalyzed carbonylation of allyl alcohols to acids

Journal of Molecular Catalysis, 1989

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Research paper thumbnail of Stereospecific nickel and phase transfer catalyzed carbonylation of vinyl bromides and chlorides

Tetrahedron Letters, 1989

Research paper thumbnail of A new double carbonylation reaction

Journal of Molecular Catalysis, 1993

The phase transfer catalyzed carbonylation of a-vinylcinnamic acid to an a-ketolactone in the pre... more The phase transfer catalyzed carbonylation of a-vinylcinnamic acid to an a-ketolactone in the presence of nickel cyanide is the first example of a decarboxylation-double carbonylation reaction.

Research paper thumbnail of Influence of (PN) bidentate ligand on rhodium-catalyzed hydroformylation of olefins

Journal of Molecular Catalysis, 1993

Mixed (P-N) bidentate ligands enhance the rhodium-catalyzed hydroformylation of olefins, and in t... more Mixed (P-N) bidentate ligands enhance the rhodium-catalyzed hydroformylation of olefins, and in the hydroformylation of styrene, provides good selectivity.

Research paper thumbnail of Phosphine vs. phosphine oxide ligands in hydroformylation reactions

Journal of the Chemical Society, Chemical Communications, 1994

In the hydroformylation of styrene catalysed by rhodium complexes, mixed amino phosphine oxide li... more In the hydroformylation of styrene catalysed by rhodium complexes, mixed amino phosphine oxide ligands show high reactivity and selectivity for the formation of the branched aldehyde. ... The catalytic properties of low-valent transition metal com-plexes with bidentate ...

Research paper thumbnail of Selective hydrogenation of α,β-unsaturated carbonyl compounds by rhodium trichloride and aliquat®-336 in a two-phase liquid system

Journal of Molecular Catalysis, 1986

The solvated ion pair [(CsHi7)sNCH3]+[RhClJ, formed from aqueous rhodium trichloride and Aliquat@... more The solvated ion pair [(CsHi7)sNCH3]+[RhClJ, formed from aqueous rhodium trichloride and Aliquat@-336 in a two-phase liquid system, was shown to hydrogenate a&unsaturated ketones and esters selectively at the CC double bonds. The reduction of benzylideneacetophenone was found to follow first-order kinetics in the substrate only below 0.2 M, and to approach second-order in HZ at partial pressures of <0.12 atm. The catalysis also proved to depend on the nature of the solvent, the phase transfer catalyst and the stirring rate. The observed activation energy E, = 12.4 kcal mol-l suggests that the process is both chemically and diffusion controlled.

Research paper thumbnail of Preparation and X-ray structure of a rhodium(III)-(S)- 6,6′-dimethyl-2,2′-diamino-biphenyl complex

Tetrahedron: Asymmetry, 1993

Research paper thumbnail of Selective CC bond hydrogenation in unsaturated nitro compounds in the presence of the RhCl3-aliquat 336 catalyst system

Tetrahedron Letters, 1987

The ion pair formed from aqueous rhodium trichloride and Aliquat 336 catalyzes the selective hydr... more The ion pair formed from aqueous rhodium trichloride and Aliquat 336 catalyzes the selective hydrogenation of olefinic CC bonds of a variety of unsaturated nitro compounds in a two liquid phase system at 30°C. Nitrobenzene gives, under these conditions, a mixture of aniline and nitrocyclohexane.

Research paper thumbnail of Regiospecific nickel cyanide and phase transfer catalyzed synthesis of .beta.,.gamma.-unsaturated acids from allenes

Organometallics, 1990

Acknowledgment. We are most grateful to Dr. Peter Lo of Dow Corning Sussex Research for his gener... more Acknowledgment. We are most grateful to Dr. Peter Lo of Dow Corning Sussex Research for his generous help and encouragement. We thank Geraint H. Morgan for help with the pyrolysis experiments and the SERC for support. ... (11) Davidson, I. M. T.; Lawrence, F. T.; Fritz, ...

Research paper thumbnail of Nickel-Catalyzed Double Carbonylation of Halodienes: A Possible New Mechanism for the Double Carbonylation Reaction

Organometallics, 1994

Carbonylation reactions of organic compounds cata-lyzed by transition-metal complexes are widely ... more Carbonylation reactions of organic compounds cata-lyzed by transition-metal complexes are widely utilized in organic synthesis to produce carbonyl compounds, such as aldehydes, ketones, carboxylic acids, esters, and amides. These reactions are generally ...

Research paper thumbnail of Lanthanide-promoted and nickel cyanide-catalyzed carbonylation reactions under phase-transfer conditions

Journal of the American Chemical Society, 1989

(29) Cannon, RD Chem. Phys. Lett. 1977, 49, 299. (30) Narayanaswamy, CK; Narayanan, PS; Krishnan,... more (29) Cannon, RD Chem. Phys. Lett. 1977, 49, 299. (30) Narayanaswamy, CK; Narayanan, PS; Krishnan, R. S. Nafure (31) Srinivasan, KR; Kay, RL J. Chem. Phys. 1974, 60, 3645. (London) 1957, 180, 497. ... Contribution from the Ottawa-Carleton Chemistry Institute, ...

Research paper thumbnail of ChemInform Abstract: Organometallic Reactions under Phase-Transfer Conditions

Research paper thumbnail of A simple and mild method for the direct metal-catalyzed carbonylation of allyl alcohols to acids

Journal of Molecular Catalysis, Sep 1, 1989

RefDoc Bienvenue - Welcome. Refdoc est un service / is powered by. ...

Research paper thumbnail of Synthesis of a-methylene-�-lactones by nickel-catalyzed hydrocarboxylation of propargyl alcohols

Research paper thumbnail of Cyclo-oligomerization and rearrangement of some phenylated diynes by the RhCl3Aliquat 336 and by the H2PtCl6Aliquat 336 catalysts under phase transfer conditions

Journal of Molecular Catalysis, 1991

Journal of Molecular Catalysis, 66 (1991) 295-312 295 Cyclo-oligomerization and rearrangement of ... more Journal of Molecular Catalysis, 66 (1991) 295-312 295 Cyclo-oligomerization and rearrangement of some phenylated diynes by the RhC13 Aliquat 336 and by the H2PtClg Aliquat 336 catalysts under phase transfer conditions Yacoub Badrieh, Jochanan Blum* Department of Organic ...

Research paper thumbnail of ChemInform Abstract: Phosphine Oxides as Ligands in the Hydroformylation Reaction

ChemInform, 1996

ABSTRACT ChemInform is a weekly Abstracting Service, delivering concise information at a glance t... more ABSTRACT ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

Research paper thumbnail of ChemInform Abstract: Phosphine Oxides as Ligands in the Hydroformylation Reaction

ABSTRACT ChemInform is a weekly Abstracting Service, delivering concise information at a glance t... more ABSTRACT ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

Research paper thumbnail of ChemInform Abstract: Organometallic Reactions under Phase-Transfer Conditions

Research paper thumbnail of Oligomerization of alkynes by the RhCl3-aliquat 336 catalyst system

Journal of Molecular Catalysis, 1990

The cyclo-oligomerization of several terminal and internal alkynes under phase transfer condition... more The cyclo-oligomerization of several terminal and internal alkynes under phase transfer conditions by the RhCl 3 -Aliquat® 336 catalyst is described. The kinetics of 1-heptyne cyclotrimerization at 90 °C in 1,1,2,2-tetrachloroethane/water were found to follow the second-order rate law ...

Research paper thumbnail of Disproportionation and dehydrogenation of 1,3-cyclohexadienes in the presence of recyclable RhCl3-quaternary ammonium salt catalysts

Journal of Molecular Catalysis, 1988

Research paper thumbnail of A simple and mild method for the direct metal-catalyzed carbonylation of allyl alcohols to acids

Journal of Molecular Catalysis, 1989

RefDoc Bienvenue - Welcome. Refdoc est un service / is powered by. ...

Research paper thumbnail of Stereospecific nickel and phase transfer catalyzed carbonylation of vinyl bromides and chlorides

Tetrahedron Letters, 1989

Research paper thumbnail of A new double carbonylation reaction

Journal of Molecular Catalysis, 1993

The phase transfer catalyzed carbonylation of a-vinylcinnamic acid to an a-ketolactone in the pre... more The phase transfer catalyzed carbonylation of a-vinylcinnamic acid to an a-ketolactone in the presence of nickel cyanide is the first example of a decarboxylation-double carbonylation reaction.

Research paper thumbnail of Influence of (PN) bidentate ligand on rhodium-catalyzed hydroformylation of olefins

Journal of Molecular Catalysis, 1993

Mixed (P-N) bidentate ligands enhance the rhodium-catalyzed hydroformylation of olefins, and in t... more Mixed (P-N) bidentate ligands enhance the rhodium-catalyzed hydroformylation of olefins, and in the hydroformylation of styrene, provides good selectivity.

Research paper thumbnail of Phosphine vs. phosphine oxide ligands in hydroformylation reactions

Journal of the Chemical Society, Chemical Communications, 1994

In the hydroformylation of styrene catalysed by rhodium complexes, mixed amino phosphine oxide li... more In the hydroformylation of styrene catalysed by rhodium complexes, mixed amino phosphine oxide ligands show high reactivity and selectivity for the formation of the branched aldehyde. ... The catalytic properties of low-valent transition metal com-plexes with bidentate ...

Research paper thumbnail of Selective hydrogenation of α,β-unsaturated carbonyl compounds by rhodium trichloride and aliquat®-336 in a two-phase liquid system

Journal of Molecular Catalysis, 1986

The solvated ion pair [(CsHi7)sNCH3]+[RhClJ, formed from aqueous rhodium trichloride and Aliquat@... more The solvated ion pair [(CsHi7)sNCH3]+[RhClJ, formed from aqueous rhodium trichloride and Aliquat@-336 in a two-phase liquid system, was shown to hydrogenate a&unsaturated ketones and esters selectively at the CC double bonds. The reduction of benzylideneacetophenone was found to follow first-order kinetics in the substrate only below 0.2 M, and to approach second-order in HZ at partial pressures of <0.12 atm. The catalysis also proved to depend on the nature of the solvent, the phase transfer catalyst and the stirring rate. The observed activation energy E, = 12.4 kcal mol-l suggests that the process is both chemically and diffusion controlled.

Research paper thumbnail of Preparation and X-ray structure of a rhodium(III)-(S)- 6,6′-dimethyl-2,2′-diamino-biphenyl complex

Tetrahedron: Asymmetry, 1993

Research paper thumbnail of Selective CC bond hydrogenation in unsaturated nitro compounds in the presence of the RhCl3-aliquat 336 catalyst system

Tetrahedron Letters, 1987

The ion pair formed from aqueous rhodium trichloride and Aliquat 336 catalyzes the selective hydr... more The ion pair formed from aqueous rhodium trichloride and Aliquat 336 catalyzes the selective hydrogenation of olefinic CC bonds of a variety of unsaturated nitro compounds in a two liquid phase system at 30°C. Nitrobenzene gives, under these conditions, a mixture of aniline and nitrocyclohexane.

Research paper thumbnail of Regiospecific nickel cyanide and phase transfer catalyzed synthesis of .beta.,.gamma.-unsaturated acids from allenes

Organometallics, 1990

Acknowledgment. We are most grateful to Dr. Peter Lo of Dow Corning Sussex Research for his gener... more Acknowledgment. We are most grateful to Dr. Peter Lo of Dow Corning Sussex Research for his generous help and encouragement. We thank Geraint H. Morgan for help with the pyrolysis experiments and the SERC for support. ... (11) Davidson, I. M. T.; Lawrence, F. T.; Fritz, ...

Research paper thumbnail of Nickel-Catalyzed Double Carbonylation of Halodienes: A Possible New Mechanism for the Double Carbonylation Reaction

Organometallics, 1994

Carbonylation reactions of organic compounds cata-lyzed by transition-metal complexes are widely ... more Carbonylation reactions of organic compounds cata-lyzed by transition-metal complexes are widely utilized in organic synthesis to produce carbonyl compounds, such as aldehydes, ketones, carboxylic acids, esters, and amides. These reactions are generally ...

Research paper thumbnail of Lanthanide-promoted and nickel cyanide-catalyzed carbonylation reactions under phase-transfer conditions

Journal of the American Chemical Society, 1989

(29) Cannon, RD Chem. Phys. Lett. 1977, 49, 299. (30) Narayanaswamy, CK; Narayanan, PS; Krishnan,... more (29) Cannon, RD Chem. Phys. Lett. 1977, 49, 299. (30) Narayanaswamy, CK; Narayanan, PS; Krishnan, R. S. Nafure (31) Srinivasan, KR; Kay, RL J. Chem. Phys. 1974, 60, 3645. (London) 1957, 180, 497. ... Contribution from the Ottawa-Carleton Chemistry Institute, ...