Detection of active methylene compounds having cyano and carbonyl groups with chemiluminescent reaction using tris(2,2′-bipyridine)ruthenium(III) prepared by on-line electrochemical oxidation

1999 ◽  
Vol 378 (1-3) ◽  
pp. 43-46 ◽  
Author(s):  
Keiitsu Saito ◽  
Satomi Murakami ◽  
Shigeo Yamazaki ◽  
Akihiko Muromatsu ◽  
Sachiyo Hirano ◽  
...  
Keyword(s):  
Electrochemical Oxidation ◽  
Carbonyl Groups ◽  
Active Methylene Compounds ◽  
Chemiluminescent Reaction ◽  
On Line ◽  
Active Methylene

Carbon Disulfide. III. Reaction with Active Methylene Compounds. The Infrared and Ultraviolet Spectra of the Desaurins

1971 ◽  
Vol 49 (9) ◽  
pp. 1467-1476 ◽  
Author(s):  
Peter Yates ◽  
Thomas R. Lynch ◽  
Donald R. Moore
Keyword(s):  
Carbon Disulfide ◽  
Strong Interaction ◽  
Fermi Resonance ◽  
Carbonyl Groups ◽  
Ultraviolet Spectra ◽  
Weak Intensity ◽  
Active Methylene Compounds ◽  
Active Methylene ◽  
Related Compounds

The position of the carbonyl-stretching bands in the i.r. spectra of the desaurins, 2,4-bis(acylmethylene)- and 2,4-bis(carboxymethylene)-1,3-dithetane derivatives, establishes that there is a strong interaction between the sulfur atoms and the carbonyl groups. This is considered to involve mainly conjugative interaction rather than interaction through space, although the latter may account for the abnormally weak intensity of the carbonyl-stretching bands. These bands are split in the case of several desaurins and related compounds, and evidence has been obtained in one case that the splitting is due to Fermi resonance. The u.v. spectra of the desaurins and related compounds also indicate a strong conjugative interaction between the sulfur atoms and the carbonyl groups.

Carbon Disulfide. IV. Reaction with Active Methylene Compounds. The Formation of 3,5-Bismethylene-1,2,4-trithiolanes

1971 ◽  
Vol 49 (9) ◽  
pp. 1477-1488 ◽  
Author(s):  
Peter Yates ◽  
Thomas R. Lynch
Keyword(s):  
Carbon Disulfide ◽  
Sulfur Compounds ◽  
Carbonyl Groups ◽  
Geometrical Isomers ◽  
Active Methylene Compounds ◽  
Active Methylene

The three-sulfur compounds formed on oxidation of the β-keto dithio acids prepared by the reaction of active methylene compounds with base and carbon disulfide have been shown to be 3,5-bis(acylmethylene)-1,2,4-trithiolane derivatives. In several cases, two of the three possible geometrical isomers have been isolated and provisional stereochemical assignments have been made. The i.r. and u.v. spectra of the trithiolanes have been compared with those of corresponding 2,4-bis(acylmethylene)-1,3-dithie-tane derivatives (desaurins) and interpreted in terms of a strong conjugative interaction between the sulfur atoms and carbonyl groups.

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
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