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Phosphorylation of 2-Alkoxycarbonyl-5-(1',3'-diaza-1'-butenyl-3'-methyl)thiophenes and 2-alkoxycarbonyl-5-(1',3'-diaza-1'-butenyl-3'-methyl)furans by Trivalent Phosphorus Halides

✍ Scribed by S.A. Kovaleva; S.P. Ivonin; A.M. Pinchuk; A.A. Tolmachev

Book ID
110320575
Publisher
Springer US
Year
2001
Tongue
English
Weight
106 KB
Volume
37
Category
Article
ISSN
0009-3122

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## Abstract 2‐(3‐Methyl‐1,3‐diazabuten‐1‐yl)‐3‐ethoxycarbonylthiophenes are phosphorylated with phosphorus(III) halides in basic media at position 5 of the thiophene ring. Up to three heteroaromatic substituents can be introduced one by one at the same phosphorus atom. On this basis, mono‐, bis‐, a