I 2 ‐Catalyzed Tandem Annulation of Ketene Dithioacetals with Sulfonyl Hydrazides for the Synthesis of N ‐Aminosulfonamides

2021 ◽  
Vol 6 (24) ◽  
pp. 5983-5986
Author(s):  
Tianpeng Chen ◽  
Jing Shen ◽  
Mingliang Wang ◽  
Xiaoliang Xu ◽  
Dongping Cheng
Keyword(s):  
Ketene Dithioacetals

Transition metal free, green and facile halogenation of ketene dithioacetals using a KX–oxidant system

2021 ◽  
Author(s):  
Vishakha Rai ◽  
Ganesh Shivayogappa Sorabad ◽  
Mahagundappa Rachappa Maddani
Keyword(s):  
Transition Metal ◽  
Ambient Temperature ◽  
Metal Free ◽  
Ketene Dithioacetals ◽  
System P ◽  
Oxidative Halogenation ◽  
Potassium Halide

A facile oxidative halogenation of α-oxo ketene dithioacetals is achieved by using a potassium halide and an oxidant combination under transition metal free conditions at ambient temperature.

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.

Rhodium-catalyzed enone carbonyl directed C–H activation for the synthesis of indanones containing all-carbon quaternary centers

2021 ◽  
Vol 8 (7) ◽  
pp. 1447-1453
Author(s):  
Jiang Lou ◽  
Wenjia Han ◽  
Zhuqing Liu ◽  
Jiaqi Xiao
Keyword(s):  
Diazo Compounds ◽  
Quaternary Centers ◽  
Ketene Dithioacetals

Rhodium(iii)-catalyzed enone carbonyl directed C–H activation/annulation of α-aroyl ketene dithioacetals with diazo compounds has been realized for the synthesis of β-quaternary indanones.

ChemInform Abstract: Some Reactions with Ketene Dithioacetals. Part 1. Synthesis of Antimicrobial Pyrazolo[1,5-a]pyrimidines via the Reaction of Ketene Dithioacetals and 5-Aminopyrazoles.

ChemInform ◽  
2010 ◽  
Vol 32 (38) ◽  
pp. no-no
Author(s):  
Medhat A. Zaharan ◽  
Ahmed M. Sh. El-Sharief ◽  
Mohamed S. A. El-Gaby ◽  
Yousry A. Ammar ◽  
Usama H. El-Said
Keyword(s):  
Ketene Dithioacetals

ChemInform Abstract: Palladium-Catalyzed Oxidative C-O Cross-Coupling of Ketene Dithioacetals and Carboxylic Acids

ChemInform ◽  
2014 ◽  
Vol 45 (41) ◽  
pp. no-no
Author(s):  
Deqiang Liang ◽  
Mang Wang ◽  
Ying Dong ◽  
Yaru Guo ◽  
Qun Liu
Keyword(s):  
Carboxylic Acids ◽  
Cross Coupling ◽  
Ketene Dithioacetals ◽  
Palladium Catalyzed

Fluorinated ketene dithioacetals. Part IX. Synthesis and some chemical properties of new fluorinated 3H-1,2-dithiole-3-thiones

2002 ◽  
Vol 43 (33) ◽  
pp. 5809-5812 ◽  
Author(s):  
Vadim M Timoshenko ◽  
Jean-Philippe Bouillon ◽  
Yuriy G Shermolovich ◽  
Charles Portella
Keyword(s):  
Chemical Properties ◽  
Ketene Dithioacetals
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