Cycloadditions. 44. A two-step conversion of carbonyl compounds into functionalized five- and six-membered ring thioethers via intramolecular cycloaddition (original) (raw)

Cycloadditions, 47. A Route to Functionalized Cyclic Ethers by Intramolecular Cycloadditions of Unsaturated Nitro Ethers

Alfred Hassner

Chemische Berichte, 1991

View PDFchevron_right

Synthesis of Dihydrothiophenes by an Amino-Directed Thioisomünchnone−Alkene Cycloaddition Reaction

Guadalupe Silvero

European Journal of Organic Chemistry, 2001

View PDFchevron_right

ChemInform Abstract: Carbon Tetrabromide Mediated Oxidative Cyclocondensation of Ketones and Thioureas: An Easy Access to 2-Aminothiazoles

TWINKLE KESHARI

ChemInform, 2016

View PDFchevron_right

Cycloadditions. 45. Annulation of heterocycles via intramolecular nitrile oxide-heterocycle cycloaddition reaction

Alfred Hassner

The Journal of Organic Chemistry, 1991

View PDFchevron_right

An original route to newly-functionalized indoles and carbazoles starting from the ring-opening of nitrothiophenes.

Massimo Maccagno

Tetrahedron Letters, 2012

View PDFchevron_right

Syntheses and reactivity of alkyl 1-[ N -(2-chloro-5-nitro-phenyl)-benzimidoyl] thioureas

Jaromír Marek

Journal of Sulfur Chemistry, 2012

View PDFchevron_right

ChemInform Abstract: Versatile Nitrobutadienic Building Blocks from the Ring-Opening of 2- and 3-Nitrothiophenes

Giovanni Petrillo, Egon Rizzato

Cheminform, 2009

View PDFchevron_right

Carbon tetrabromide mediated oxidative cyclocondensation of ketones and thioureas: an easy access to 2-aminothiazoles

TWINKLE KESHARI

Tetrahedron Letters, 2015

View PDFchevron_right

The Conjugate Addition-Cyclization of 3-Oxoacid Thioanilides to β-Nitrostyrenes. An Efficient Synthesis of Functionalized Thiophenes and their Transformation to Pyrroles

Regina Gil

Monatshefte für Chemie - Chemical Monthly, 2005

View PDFchevron_right

Versatile Nitrobutadienic Building Blocks from the Ring-Opening of 2- and 3-Nitrothiophenes

Massimo Maccagno

Targets in Heterocyclic Systems: Chemistry and Properties, 2007

View PDFchevron_right

A new route to thiopyran S,S-dioxide derivatives via an overall ring-enlargement protocol from 3-nitrothiophene

Massimo Maccagno

Tetrahedron, 2009

View PDFchevron_right

Easy access to 4-nitrothiochroman S,S-dioxides via ring-enlargement from 3-nitrobenzo[b]thiophene

Massimo Maccagno

Tetrahedron, 2004

View PDFchevron_right

Palladium-Catalyzed Coupling Reactions of Thioimidate N-Oxides: Access to α-Alkenyl- and α-Aryl-Functionalized Cyclic Nitrones

Shaukat Ali

Angewandte Chemie International Edition, 2009

View PDFchevron_right

Novel cyclization of S-(o-acetylaryl) dimethylthiocarbamates. A new synthesis of 3-hydroxybenzothiophenes and 2-hydroxythiochromones

Cheuk Fung Lau

The Journal of Organic Chemistry, 1987

View PDFchevron_right

[3+2]-Cycloadditions of nitrilimines with heteroaryl thioketones

Korany Ali

Journal of Sulfur Chemistry

View PDFchevron_right

C-Aminoimidoylation and C-Thiocarbamoylation of Esters, Sulfones, and Ketones

Ion Ghiviriga

The Journal of Organic Chemistry, 2007

View PDFchevron_right

Photoinduced transformations. 76. A four-step substitution of a carbonyl group of steroidal ketones by an oxygen atom. A new method for the synthesis of cyclic ethers

Shinji Yamada

J Org Chem, 1985

View PDFchevron_right

Nitrobutadienes from β-Nitrothiophenes: Valuable Building Blocks in the Overall Ring Opening/Ring Closure Protocol to Homo or Heterocycles

Massimo Maccagno

Arkivoc, 2006

View PDFchevron_right

Synthesis of heterocyclic Compounds, XXXVII. Preparation of 4,6-Diaryl-1,2-dihydro-2-thioxo-3,5-pyridinedicarbonitriles and Related Compounds

Carlos Seoane

Liebigs Annalen der Chemie, 1984

View PDFchevron_right

Reactivity of 2-Cyano-N-(4-(1-Methyl-1H-benzo[d]imidazol-2-yl)-3-(Methylthio)-1-Phenyl-1H-Pyrazol-5-yl)Acetamide: A Facile Synthesis of Pyrazole, Thiazole, 1,3,4-Thiadiazole and Polysubstituted Thiophene Derivatives

Mohamed Raslan

American Journal of Organic Chemistry, 2012

View PDFchevron_right

Synthesis of Mono- and N,N - Disubstituted Thioureas and N -Acylthioureas

Nataliya Kirichenko

Synthesis, 2004

View PDFchevron_right

ChemInform Abstract: A Divergent Approach to Highly Substituted Benzothiepinones and to 2,3-Dihydrothieno[2,3-b]thiopyran-4-ones

Nahid Zafar

ChemInform, 2010

View PDFchevron_right

Access to 2,3-diaryl-4-nitrothiochroman S,S-dioxides from 3-nitrobenzo[b]thiophene

Egon Rizzato

Tetrahedron, 2011

View PDFchevron_right

2-Chloro-1-methylpyridinium iodide, an efficient reagent for the conversion of alcohols into alkyl thiocyanates both under solvent and solvent-free conditions

Babak Mokhtari

Tetrahedron Letters, 2012

View PDFchevron_right

Syntheses of Dialkyl and Functionalized Ketones via 1-(Benzotriazol-1-yl)alkyl Methyl Thioethers

Ion Ghiviriga

The Journal of Organic Chemistry, 1998

View PDFchevron_right

ChemInform Abstract: A Facile and Straightforward Synthesis of 1,2,3-Thiadiazoles from α-Enolicdithioesters via Nitrosation/Reduction/Diazotization/Cyclization Cascade in One-Pot

Girijesh Verma

ChemInform, 2014

View PDFchevron_right

An efficient synthesis of N-substituted 3-nitrothiophen-2-amines

José Carlos Menéndez

Beilstein journal of organic chemistry, 2015

View PDFchevron_right

Nitroketene dithioacetal chemistry: Synthesis of 2-alkylthio-3-nitrothiophenes from nitroketene dithioacetate and chloromethyl ketones

H. Surya Prakash Rao

The Journal of Organic Chemistry, 2009

View PDFchevron_right

ChemInform Abstract: The Reaction of Cyanoketene Dithioacetals with Imidazolidinones: A Synthesis of Methylsulfanylpyrrolo(1,2‐c)imidazolones

Husséin Ali

ChemInform, 2010

View PDFchevron_right

Methods for preparation of heterobifunctional nitroxides: α,β-unsaturated ketones, β-ketoesters, cyano-nitro-derivatives

Gyula Kulcsar

Canadian Journal of Chemistry, 1982

View PDFchevron_right

Cycloadditions. 41. Conversion of unsaturated alcohols into functionalized tetrahydrofurans and tetrahydropyrans via nitrile oxide dipolar cycloadditions

Allen Schoffstall, Albert Padwa

J Org Chem, 1989

View PDFchevron_right

Simple construction of fused and spiro nitrogen/sulfur containing heterocycles by addition of thioamides or thioureas on cycloalkenyl-diazenes: examples of click chemistry

Paolino Filippone

Tetrahedron, 2008

View PDFchevron_right

Ring opening of 2-substituted 4-nitrothiophenes with pyrrolidine. Access to new functionalized nitro-unsaturated building blocks

A. Gabellini

Tetrahedron, 2001

View PDFchevron_right

N-Benzoyl / (4-nitrobenzoyl)-N'-4-cyanophenyl thioureas

Fatma Aydin

View PDFchevron_right

Direct Synthetic Approach to N-Substituted 1-Amino-2,3-dihydro-1H-imidazole-2-thiones

Joachim Schantl

HETEROCYCLES, 1997

View PDFchevron_right