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Iodo derivatives of 5-methyl-1-phenyl-1,2,3-triazolecarboxylic acid

✍ Scribed by H. N. Bojarska-Dahlig

Book ID
104586413
Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
374 KB
Volume
80
Category
Article
ISSN
0165-0513

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✦ Synopsis

Abstract

1‐(3′‐Iodophenyl)‐5‐methyl‐1,2,3‐triazolecarboxylic acid, 1‐(4′‐iodophenyl)‐5‐methyl‐1,2,3‐triazolecarboxylic acid and 1‐(3′‐4′‐di‐iodophenyl)‐5‐methyl‐1,2,3‐triazolecarboxylic acid were prepared by reacting ethyl acetylacetate with the corresponding 1‐azido‐di‐iodobenzene.

5‐Methyl‐1‐phenyl‐1,2,3‐triazolecarbonyl chloride and 1‐(4′‐iodophenyl)‐5‐methyl‐1,2,3‐triazolecarbonyl chloride were condensed with 3‐amino‐2,4,6‐tri‐iodobenzoic acid, α‐ethyl‐3‐amino‐2,4,6‐tri‐iodohydrocinnamic (iopanoic) acid and α‐ethyl‐3‐amino‐2,4,6‐tri‐iodocinnamic (dehydroiopanoic) acid.

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Sulfur derivatives of 3-methyl-5-phenyl-
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## Abstract The triazaphosphole __1__ adds sulfur along with HCl or H~2~S to yield, respectively, the dihydrotriazaphosphole thiochloride __4__ and sesquisulfide __5__ (two diastereomers). In pyridine solution, __1__ adds sulfur alone to yield the trimer of a triazaphosphole monosulfide __7__. Its