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Interconversions, reactivities, and structures of isomeric hydrothiochromenes

✍ Scribed by T. V. Stolbova; S. K. Klimenko; A. A. Shcherbakov; V. G. Andrianov; Yu. T. Struchkov; V. G. Kharchenko

Book ID
112346183
Publisher
Springer US
Year
1981
Tongue
English
Weight
423 KB
Volume
17
Category
Article
ISSN
0009-3122

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## Abstract 4‐Hydrazino‐7__H__‐pyrrolo[2,3‐__d__]pyrimidines **4** were cyclocondensed with formic acid or triethyl orthoformate to give 7__H__‐pyrrolo[3,2‐__e__][1,2,4]triazolo[1,5‐__c__]pyrimidines **6** and 7__H__‐pyrrolo[3,2‐__e__][1,2,4]triazolo[4,3‐__c__]pyrimidines **7**, respectively. The [