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Multicomponent Synthesis of Dihydropyrimidines and Thiazines

Chemistry - A European Journal, 2006
AbstractA broad range of differently substituted dihydropyrimidines and thiazines can be efficiently prepared by using a four‐component reaction between phosphonates, nitriles, aldehydes, and iso(thio)cyanates. The scope and limitations of this multicomponent reaction are fully described. Variation of all four components has been investigated.
Danielle J Vugts
exaly   +4 more sources

4H-1,4-THIAZINES ET 2H-1,4-THIAZINES A PARTIR DE 2-(DIALKYLHYDRAZONO)-THIOACETOPHENONES

Phosphorus, Sulfur and Silicon and the Related Elements, 1992
Abstract 2-(Dialkylhydrazono)thioacetophenones 1 react with N-phenylmaleimide and lead via [4 + 2] cycloaddition to 4-amino-3,4-dihydro-2H-1,4-thiazines 2 which are easily converted into 4H-1,4-thiazines 3. Reaction with 1,4-naphthoquinone leads directly to 4H-1,4-thiazines 4.
A. Reliquet   +3 more
exaly   +2 more sources

Thiazine, Antibiotic, Bilirubin Adducts

Xenobiotica, 1989
1. Electron charge transfer interactions of some phenothiazine derivatives with aminoglycoside antibiotics, beta-lactams and penicillin-related antibiotics and bilirubin were investigated with alternating current titrations. 2. Neither the beta-lactams nor penicillin-related drugs interacted. 3.
G M, Eckert, F, Gutmann, H, Keyzer
openaire   +2 more sources

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