scholarly journals Synthesis of bis(indolyl)methanes under catalyst-free and solvent-free conditions

2012 ◽  
Vol 5 (3) ◽  
pp. 353-402 ◽  
Author(s):  
Kashinath L. Dhumaskar ◽  
Santosh G. Tilve
Keyword(s):  
Solvent Free ◽  
Catalyst Free ◽  
Solvent Free Conditions

scholarly journals Catalyst- and solvent-free approach to 2-arylated quinolines via [5 + 1] annulation of 2-methylquinolines with diynones

RSC Advances ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 4584-4587 ◽  
Author(s):  
Hai-Yuan Zhao ◽  
Fu-Song Wu ◽  
Li Yang ◽  
Ying Liang ◽  
Xiao-Lin Cao ◽  
...  
Keyword(s):  
Solvent Free ◽  
Catalyst Free ◽  
Solvent Free Conditions

A novel route for the synthesis of 2-arylated quinolines through a [5 + 1] annulation directly from 2-methylquinolines and diynones under catalyst-free and solvent-free conditions was disclosed.

Efficient Synthesis of Novel Quinolinone Derivatives via Catalyst-free Multicomponent Reaction

2020 ◽  
Vol 17 (5) ◽  
pp. 403-407
Author(s):  
Rui Du ◽  
Liangliang Han ◽  
Zhongqiang Zhou ◽  
Victor Borovkov
Keyword(s):  
Reaction Time ◽  
Multicomponent Reaction ◽  
Room Temperature ◽  
Reaction Rates ◽  
Solvent Free ◽  
Hydroxyl Group ◽  
Efficient Synthesis ◽  
Catalyst Free ◽  
Solvent Free Conditions ◽  
Substituted Benzaldehydes

The synthesis of 3-(aryl(piperidin-1-yl)methyl)-4-hydroxyquinolin-2(1H)-one derivatives via catalyst-free multicomponent reaction is described. The reaction of 4-hydroxyquinolin-2(1H)-one, piperidine, and 4-chlorobenzaldehyde was carried out in different solvents and under solvent-free conditions at room temperature. The best solvent in terms of the yield and reaction time was found to be dichloromethane. Most substituted benzaldehydes reacted with 4-hydroxyquinolin-2(1H)-one and piperidine to afford corresponding products in good-to-excellent yields. Aldehydes with electronwithdrawing groups were more reactive to exhibit higher reaction rates. However, 2-substituted benzaldehydes did not react with 4-hydroxyquinolin-2(1H)-one and piperidine under the reaction condition. Aldehydes bearing a hydroxyl group failed to produce the corresponding products.

A green and clean pathway: one pot, multicomponent, and visible light assisted synthesis of pyrano[2,3-c]pyrazoles under catalyst-free and solvent-free conditions

2017 ◽  
Vol 41 (19) ◽  
pp. 11148-11154 ◽  
Author(s):  
Bhartendu Pati Tripathi ◽  
Anu Mishra ◽  
Pratibha Rai ◽  
Yogesh Kumar Pandey ◽  
Madhulika Srivastava ◽  
...  
Keyword(s):  
Visible Light ◽  
Room Temperature ◽  
Solvent Free ◽  
One Pot ◽  
Catalyst Free ◽  
Solvent Free Conditions

Visible light mediated, an eco-friendlier synthetic protocol for dihydropyrano[2,3-c]pyrazoles via catalyst-free and solvent-free conditions at room temperature.

Catalyst-free and solvent-free hydroboration of alkynes

2020 ◽  
Vol 44 (32) ◽  
pp. 13626-13632
Author(s):  
Ashok Kumar Jaladi ◽  
Hyeon Seong Choi ◽  
Duk Keun An
Keyword(s):  
Solvent Free ◽  
Catalyst Free ◽  
Solvent Free Conditions

The hydroboration of alkynes with pinacolborane (HBpin) under catalyst- and solvent-free conditions was demonstrated.

An efficient synthesis of 2,3-dihydroquinazolin-4(1H)-one derivatives under catalyst-free and solvent-free conditions

2011 ◽  
Vol 48 (4) ◽  
pp. 957-960 ◽  
Author(s):  
Lijiu Gao ◽  
Honglou Ji ◽  
Liangce Rong ◽  
Dan Tang ◽  
Yunyun Zha ◽  
...  
Keyword(s):  
Solvent Free ◽  
Efficient Synthesis ◽  
Catalyst Free ◽  
Solvent Free Conditions

ChemInform Abstract: An Efficient Synthesis of 2,3-Dihydroquinazolin-4(1H)-one Derivatives under Catalyst-Free and Solvent-Free Conditions.

ChemInform ◽  
2011 ◽  
Vol 42 (50) ◽  
pp. no-no
Author(s):  
Lijiu Gao ◽  
Honglou Ji ◽  
Liangce Rong ◽  
Dan Tang ◽  
Yunyun Zha ◽  
...  
Keyword(s):  
Solvent Free ◽  
Efficient Synthesis ◽  
Catalyst Free ◽  
Solvent Free Conditions
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