A calcium catalysed regioselective (5-exo dig) tandem process for the synthesis of fully substituted furans

RSC Advances ◽  
2016 ◽  
Vol 6 (34) ◽  
pp. 28865-28870 ◽  
Author(s):  
Srinivasarao Yaragorla ◽  
Ravikrishna Dada ◽  
Abhishek Pareek ◽  
Garima Singh
Keyword(s):  
Solvent Free ◽  
Regioselective Synthesis ◽  
Solvent Free Conditions ◽  
Reaction Proceeds ◽  
Tandem Process ◽  
Substituted Furans

An efficient and highly regioselective synthesis of fully substituted furans has been described using Ca(OTf)2. The reaction proceeds through tandem alkylation, 5-exo dig cyclisation and isomerization under solvent free conditions.

ChemInform Abstract: A NHC-Involved, Cascade, Metal-Free, and Three-Component Synthesis of 2,3-Diarylated Fully Substituted Furans under Solvent-Free Conditions.

ChemInform ◽  
2012 ◽  
Vol 43 (6) ◽  
pp. no-no
Author(s):  
Chenxia Yu ◽  
Jun Lu ◽  
Tuanjie Li ◽  
Donglin Wang ◽  
Binbin Qin ◽  
...  
Keyword(s):  
Solvent Free ◽  
Metal Free ◽  
Solvent Free Conditions ◽  
Substituted Furans

Highly efficient regioselective synthesis of pyrroles via a tandem enamine formation–Michael addition–cyclization sequence under catalyst- and solvent-free conditions

2015 ◽  
Vol 17 (6) ◽  
pp. 3415-3423 ◽  
Author(s):  
Thavaraj Vivekanand ◽  
Perumal Vinoth ◽  
B. Agieshkumar ◽  
Natarajan Sampath ◽  
Arumugam Sudalai ◽  
...  
Keyword(s):  
Column Chromatography ◽  
Michael Addition ◽  
Solvent Free ◽  
Regioselective Synthesis ◽  
Highly Efficient ◽  
Solvent Free Conditions ◽  
Enamine Formation

An efficient three-component, catalyst-, solvent-, and column chromatography-free procedure was developed for the synthesis of 3-(1H-pyrrol-3-yl)indolin-2-ones.

Solid lithium perchlorate as a powerful catalyst for the synthesis of β-aminoalcohols under solvent-free conditions

2005 ◽  
Vol 83 (5) ◽  
pp. 505-507 ◽  
Author(s):  
Najmodin Azizi ◽  
Mohammad R Saidi
Keyword(s):  
Ring Opening ◽  
Room Temperature ◽  
Lithium Perchlorate ◽  
Solvent Free ◽  
Solvent Free Conditions ◽  
Reaction Proceeds ◽  
Ring Opening Of Epoxides ◽  
Neutral Conditions ◽  
Hindered Amines ◽  
Short Times

Lithium perchlorate catalyzed the ring opening of epoxides with amines to provide the corresponding β-aminoalcohols in excellent yields with high regioselectivity. The reaction proceeds rapidly under mild and neutral conditions and worked well with primary, secondary, aliphatic, aromatic, and hindered amines in short times at room temperature, in the absence of solvent.Key words: epoxide, lithium perchlorate, β-aminoalcohols, solvent-free.

ChemInform Abstract: Microwave-Mediated Regioselective Synthesis of Novel Pyrimido[1,2-a]pyrimidines under Solvent-Free Conditions.

ChemInform ◽  
2010 ◽  
Vol 32 (24) ◽  
pp. no-no
Author(s):  
Jean Jacques Vanden Eynde ◽  
Nancy Hecq ◽  
Olga Kataeva ◽  
C. Oliver Kappe
Keyword(s):  
Solvent Free ◽  
Regioselective Synthesis ◽  
Solvent Free Conditions

ChemInform Abstract: MCM-41 Catalyzed Efficient Regioselective Synthesis of β-Aminoalcohol under Solvent-Free Conditions.

ChemInform ◽  
2010 ◽  
Vol 41 (26) ◽  
pp. no-no
Author(s):  
Majid M. Heravi ◽  
Khadijeh Bakhtiari ◽  
Hamideh Alinejhad ◽  
Mina Saeedi ◽  
Reihane Malakooti
Keyword(s):  
Solvent Free ◽  
Regioselective Synthesis ◽  
Solvent Free Conditions ◽  
Mcm 41

ChemInform Abstract: Regioselective Synthesis of Novel Substituted Pyrazolo[1,5-a]pyrimidines under Solvent-Free Conditions.

ChemInform ◽  
2009 ◽  
Vol 40 (6) ◽  
Author(s):  
Jairo Quiroga ◽  
Jaime Portilla ◽  
Rodrigo Abonia ◽  
Braulio Insuasty ◽  
Manuel Nogueras ◽  
...  
Keyword(s):  
Solvent Free ◽  
Regioselective Synthesis ◽  
Solvent Free Conditions
Sign in / Sign up

Export Citation Format

Share Document