Cascade synthesis of indolizines and pyrrolo[1,2-a]pyrazines from 2-formyl-1-propargylpyrroles

2021 ◽  
Author(s):  
Carlos H. Escalante ◽  
Fernando A. Carmona-Hernández ◽  
Alberto Hernández-López ◽  
Eder I. Martínez-Mora ◽  
Francisco Delgado Reyes ◽  
...  
Keyword(s):  
Active Methylene Compounds ◽  
Aromatization Reaction ◽  
Active Methylene

A straightforward synthesis of indolizines and pyrrolo[1,2-a]pyrazines was performed through a cascade condensation/cyclization/aromatization reaction of substituted 2-formyl-N-propargylpyrroles with active methylene compounds such as nitromethane, alkyl malonates, methyl cyanoacetate and malononitrile....

scholarly journals Application of Commercially Available Anhydrous Potassium Fluoride for a Convenient Synthesis of Ketene Dithioacetals

1999 ◽  
Vol 23 (8) ◽  
pp. 492-493
Author(s):  
Sabir H. Mashraqui ◽  
Harini Hariharasubrahmanian
Keyword(s):  
Carbon Disulfide ◽  
Alkylating Agent ◽  
Potassium Fluoride ◽  
Solid Support ◽  
Ambient Conditions ◽  
Ketene Dithioacetals ◽  
Convenient Synthesis ◽  
Active Methylene Compounds ◽  
Active Methylene

Commercially available anhydrous KF without activation or solid support promotes condensation between active methylene compounds, carbon disulfide and an alkylating agent in dry DMF to allow the preparation of a variety of ketene dithioacetals in fair to good yields under ambient conditions.

The Copper-catalyzed Chemoselective Monoalkylation of Active Methylene Compounds with Alkylsilyl Peroxides

2021 ◽  
Author(s):  
Jiamin Lv ◽  
Weiping Xu ◽  
Hanbin Lu ◽  
Terumasa Kato ◽  
Yan Liu ◽  
...  
Keyword(s):  
Active Methylene Compounds ◽  
Novel Method ◽  
Active Methylene

A novel method for a mild copper-catalyzed chemoselective monoalkylation of active methylene compounds with various alkylsilyl peroxides has been developed. The reaction has a broad substrate scope and our mechanistic...

scholarly journals A Convenient Method for the Introduction of 1,3-Dithiolan-2-yl Group into Active Methylene Compounds

1978 ◽  
Vol 51 (2) ◽  
pp. 665-666 ◽  
Author(s):  
Shigeo Tanimoto ◽  
Yasuo Matsumura ◽  
Toyonari Sugimoto ◽  
Masaya Okano
Keyword(s):  
Convenient Method ◽  
Active Methylene Compounds ◽  
Active Methylene

Reaction of 2-Alkylthiopyridinium Salts with Active Methylene Compounds

Heterocycles ◽  
2007 ◽  
Vol 74 (1) ◽  
pp. 791 ◽  
Author(s):  
Reiko Fujita ◽  
Masato Hoshino ◽  
Tsuyoshi Taguchi ◽  
Hiroto Nakano ◽  
Hiroshi Tomisawa ◽  
...  
Keyword(s):  
Active Methylene Compounds ◽  
Active Methylene

Radical Addition Reaction of Brominated Active Methylene Compounds to Enol Ethers Using 2,2‘-Azobis(2,4- dimethyl-4-methoxyvaleronitrile) (V-70) as an Initiator

1999 ◽  
Vol 64 (2) ◽  
pp. 675-678 ◽  
Author(s):  
Yasuyuki Kita ◽  
Atsunori Sano ◽  
Takahiro Yamaguchi ◽  
Masahisa Oka ◽  
Kentoku Gotanda ◽  
...  
Keyword(s):  
Addition Reaction ◽  
Radical Addition ◽  
Enol Ethers ◽  
Active Methylene Compounds ◽  
Active Methylene
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