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Solvent effect in the synthesis of 4-carbamoyl-3-hydroxycoumarins

✍ Scribed by S. A. Lang Jr.; Elliott Cohen; F. M. Lovell

Book ID
112123137
Publisher
Journal of Heterocyclic Chemistry
Year
1974
Tongue
English
Weight
322 KB
Volume
11
Category
Article
ISSN
0022-152X

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## Abstract The novel [^14^C]‐labelled 3‐carbamoyl‐4‐hydroxycoumarins were prepared in two steps from 4‐chloro‐acetylsalicyloyl chloride (3). The isotope was incorporated by the reaction of diethyl malonate‐1,3‐^14^C with 4‐chloro‐acetylsalicyloyl chloride (3). Subsequent condensation of the result