Antonio De La Hoz - Academia.edu (original) (raw)
Papers by Antonio De La Hoz
![Research paper thumbnail of ChemInform Abstract: Synthesis of Pyrazolo[3,4-b]pyridines by Cycloaddition Reactions under Microwave Irradiation](https://attachments.academia-assets.com/112155570/thumbnails/1.jpg)
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Organic and Biomolecular Chemistry, 2010
Journal of Materials Chemistry C, 2022
In order to establish a relationship between the structure and the optical waveguiding behavior, ... more In order to establish a relationship between the structure and the optical waveguiding behavior, two series of linear bisethynylbenzenes combining trifluoromethyl and methoxy groups in the core and external rings were synthesized.
Journal of the Chemical Society, 1993
ABSTRACT The possibility of preparing 4-alkylpyrazoles from malononitrile (through C-alkyl malono... more ABSTRACT The possibility of preparing 4-alkylpyrazoles from malononitrile (through C-alkyl malononitriles and 3,5-diamino-4 alkylpyrazoles) has been explored. Although some difficulties arise in the double-deamination step, the method has allowed the synthesis of 4-benzyl- and 4-phenethyl-pyrazoles. New 3-halogenopyrazoles have also been prepared. The synthesis of 3,5-diamino-4-iodopyrazole is reported. This elusive compound has a C-13 NMR spectrum in which an aromatic carbon (C-4) appears at delta 29.53
Advances in organic synthesis, Mar 1, 2005
![Research paper thumbnail of Donor–Acceptor–Donor 1H-Benzo[d]imidazole Derivatives as Optical Waveguides](https://attachments.academia-assets.com/112155548/thumbnails/1.jpg)
](Molecules, Jun 8, 2023
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
ChemInform, Aug 4, 2010
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was e... more 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.
ChemInform, Aug 17, 2010
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was e... more 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.
Synlett, May 1, 1999
© Georg Thieme Verlag, Rüdigerstr. 14, 70469 Stuttgart, Germany. All rights reserved. This journa... more © Georg Thieme Verlag, Rüdigerstr. 14, 70469 Stuttgart, Germany. All rights reserved. This journal, including all individual contributions and illustrations published therein, is legally protected by copyright for the duration of the copyright period. Any use, exploitation or ...
ChemInform, Sep 23, 2008
www.cheminform.wiley-vch.de Benzopyran derivatives R 0350 Microwave-Assisted Reactions: Three Com... more www.cheminform.wiley-vch.de Benzopyran derivatives R 0350 Microwave-Assisted Reactions: Three Component Process for the Synthesis of 2-Amino-2-chromenes under Microwave Heating.-A simple and high yield process in the presence of a small amount of solvent is used for the preparation of title compounds, e.g. (IV).
ChemInform, Mar 27, 2007
Pyrazole derivatives R 0180 Recyclable Supported Catalysts in Microwave-Assisted Reactions: First... more Pyrazole derivatives R 0180 Recyclable Supported Catalysts in Microwave-Assisted Reactions: First Diels-Alder Cycloaddition of a Triazole Ring.-The microwave-assisted Diels-Alder reaction with 1,2,3-triazoles as diene in the presence of AlCl3 supported on silica gel dramatically enhances the yield of the resulting pyrazoles.-(DIAZ-ORTIZ*, A.
ChemInform, May 24, 2010
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was e... more 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.
ChemInform, May 26, 2010
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was e... more 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.
Journal of the Chemical Society, 1992
Rapid alkylations of ethyl phenylsulfonylacetate with a series of halides were performed in ,960 ... more Rapid alkylations of ethyl phenylsulfonylacetate with a series of halides were performed in ,960 W domestic microwave oven, and the isolated yield of a-monoalkylated product varying from 76 to 86%. In previous papers "-'' we have reported the solid-liquid phase transfer catalytic alkylation, carbonyl addition, Michael addition and 1.3-dipolar cycloaddition. It is a convenient synthetic method for large scale preparation in the organic synthesis. Recently the rapid heating capablity of microwave oven has * To whom correspondence should be addressed.
European Journal of Organic Chemistry
Tetrahedron, 1997
ABSTRACT
Chemometrics and Intelligent Laboratory Systems, 1990
ABSTRACT Elguero, J., Goya, P., Páez, J.A., Diez-Barra, E., De la Hoz, A., Moreno, A., Mathieu, D... more ABSTRACT Elguero, J., Goya, P., Páez, J.A., Diez-Barra, E., De la Hoz, A., Moreno, A., Mathieu, D., Phan Tan Luu, R. and Sergent, M., 1990. Application of optimal design methodology to the phase transfer catalytic benzylation of malononitrile. Chemometrics and Intelligent Laboratory Systems, 9: 287–292.Experimental design methodology using NEMROD software programs has been applied to achieve selective monobenzylation of malononitrile under PTC conditions. Different mathematical models have been used to study the variation in selectivity and yield of the reaction with different qualitative and quantitative experimental variables.
Organic and Biomolecular Chemistry, 2014
A DFT computational mechanistic study of the ring closing metathesis (RCM) reaction of diallyl et... more A DFT computational mechanistic study of the ring closing metathesis (RCM) reaction of diallyl ether or N,N-diallylp-toluenesulfonamide catalyzed by a second generation Grubbs-type ruthenium carbene complex has been carried out. This study was performed at the PCM(CH 2 Cl 2)-B3LYP/6-311+G(2d,p)// B3LYP/SDD theory level. The aim of this work was to shed light on the influence that microwave irradiation has on these reactions and to gain insight into the so-called 'molecular radiator' effect. The outcomes obtained indicate that thermal effects induced by microwave irradiation decrease the catalytic induction period. The presence of a polar reagent and/or polar species in the reaction that increases the polarity of the medium may enhance this thermal effect.
Organic and Biomolecular Chemistry, 2010
Journal of Materials Chemistry C, 2022
In order to establish a relationship between the structure and the optical waveguiding behavior, ... more In order to establish a relationship between the structure and the optical waveguiding behavior, two series of linear bisethynylbenzenes combining trifluoromethyl and methoxy groups in the core and external rings were synthesized.
Journal of the Chemical Society, 1993
ABSTRACT The possibility of preparing 4-alkylpyrazoles from malononitrile (through C-alkyl malono... more ABSTRACT The possibility of preparing 4-alkylpyrazoles from malononitrile (through C-alkyl malononitriles and 3,5-diamino-4 alkylpyrazoles) has been explored. Although some difficulties arise in the double-deamination step, the method has allowed the synthesis of 4-benzyl- and 4-phenethyl-pyrazoles. New 3-halogenopyrazoles have also been prepared. The synthesis of 3,5-diamino-4-iodopyrazole is reported. This elusive compound has a C-13 NMR spectrum in which an aromatic carbon (C-4) appears at delta 29.53
Advances in organic synthesis, Mar 1, 2005
Molecules, Jun 8, 2023
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
ChemInform, Aug 4, 2010
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was e... more 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.
ChemInform, Aug 17, 2010
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was e... more 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.
Synlett, May 1, 1999
© Georg Thieme Verlag, Rüdigerstr. 14, 70469 Stuttgart, Germany. All rights reserved. This journa... more © Georg Thieme Verlag, Rüdigerstr. 14, 70469 Stuttgart, Germany. All rights reserved. This journal, including all individual contributions and illustrations published therein, is legally protected by copyright for the duration of the copyright period. Any use, exploitation or ...
ChemInform, Sep 23, 2008
www.cheminform.wiley-vch.de Benzopyran derivatives R 0350 Microwave-Assisted Reactions: Three Com... more www.cheminform.wiley-vch.de Benzopyran derivatives R 0350 Microwave-Assisted Reactions: Three Component Process for the Synthesis of 2-Amino-2-chromenes under Microwave Heating.-A simple and high yield process in the presence of a small amount of solvent is used for the preparation of title compounds, e.g. (IV).
ChemInform, Mar 27, 2007
Pyrazole derivatives R 0180 Recyclable Supported Catalysts in Microwave-Assisted Reactions: First... more Pyrazole derivatives R 0180 Recyclable Supported Catalysts in Microwave-Assisted Reactions: First Diels-Alder Cycloaddition of a Triazole Ring.-The microwave-assisted Diels-Alder reaction with 1,2,3-triazoles as diene in the presence of AlCl3 supported on silica gel dramatically enhances the yield of the resulting pyrazoles.-(DIAZ-ORTIZ*, A.
ChemInform, May 24, 2010
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was e... more 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.
ChemInform, May 26, 2010
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was e... more 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.
Journal of the Chemical Society, 1992
Rapid alkylations of ethyl phenylsulfonylacetate with a series of halides were performed in ,960 ... more Rapid alkylations of ethyl phenylsulfonylacetate with a series of halides were performed in ,960 W domestic microwave oven, and the isolated yield of a-monoalkylated product varying from 76 to 86%. In previous papers "-'' we have reported the solid-liquid phase transfer catalytic alkylation, carbonyl addition, Michael addition and 1.3-dipolar cycloaddition. It is a convenient synthetic method for large scale preparation in the organic synthesis. Recently the rapid heating capablity of microwave oven has * To whom correspondence should be addressed.
European Journal of Organic Chemistry
Tetrahedron, 1997
ABSTRACT
Chemometrics and Intelligent Laboratory Systems, 1990
ABSTRACT Elguero, J., Goya, P., Páez, J.A., Diez-Barra, E., De la Hoz, A., Moreno, A., Mathieu, D... more ABSTRACT Elguero, J., Goya, P., Páez, J.A., Diez-Barra, E., De la Hoz, A., Moreno, A., Mathieu, D., Phan Tan Luu, R. and Sergent, M., 1990. Application of optimal design methodology to the phase transfer catalytic benzylation of malononitrile. Chemometrics and Intelligent Laboratory Systems, 9: 287–292.Experimental design methodology using NEMROD software programs has been applied to achieve selective monobenzylation of malononitrile under PTC conditions. Different mathematical models have been used to study the variation in selectivity and yield of the reaction with different qualitative and quantitative experimental variables.
Organic and Biomolecular Chemistry, 2014
A DFT computational mechanistic study of the ring closing metathesis (RCM) reaction of diallyl et... more A DFT computational mechanistic study of the ring closing metathesis (RCM) reaction of diallyl ether or N,N-diallylp-toluenesulfonamide catalyzed by a second generation Grubbs-type ruthenium carbene complex has been carried out. This study was performed at the PCM(CH 2 Cl 2)-B3LYP/6-311+G(2d,p)// B3LYP/SDD theory level. The aim of this work was to shed light on the influence that microwave irradiation has on these reactions and to gain insight into the so-called 'molecular radiator' effect. The outcomes obtained indicate that thermal effects induced by microwave irradiation decrease the catalytic induction period. The presence of a polar reagent and/or polar species in the reaction that increases the polarity of the medium may enhance this thermal effect.