SDS/CH2(CN)EWG/H2O: An efficient and green system for the cleavage of nitrones and imines in water
SDS/CH2(CN)EWG/H2O system (EWG= electron withdrawing group) reacted with nitrones and imines in water to produce addition-elimination products with excellent yields at room temperature.
Sharma, Saikat Das,Gogoi, Pranjal,Konwar, Dilip
p. 1672 - 1678
(2008/09/19)
Reactions with hydrazonoyl halides XIX1: Synthesis of some pyrazole and 5-arylazothiazole derivatives
Hydrazonoyl chlorides 1 reacted with 2-aryl-1-cyano-1-thiazol-2-ylethenes 2 in presence of triethylamine to give the cycloadducts 4. which were converted to the corresponding pyrazoles 5 by the action of sodium methoxide. The reaction of hydrazonoyl halides 1 and 6 with each of 2-arylidene-2-cyanoethanethioamides 7 and 2-arylhydrazono-2-cyanoethanethioamides 14 in ethanolic triethylamine or ethanolic sodium hydroxide solutions, has been investigated. Structures of all the products were established on the basis of their spectral data and alternative synthesis.
Zohdi, Hussein F.,Rateb, Nora M.,Abdelhamid, Abdou O.
p. 103 - 117
(2007/10/03)
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