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Intramolecular condensation reactions of 1,1,3,3-tetrakis(2-chloroethyl)urea

✍ Scribed by Settepani, Joseph A.; Pettit, George R.

Book ID
126267999
Publisher
American Chemical Society
Year
1970
Tongue
English
Weight
308 KB
Volume
35
Category
Article
ISSN
0022-3263

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## Abstract 2,7‐Disubstituted 3__H__‐azepines (2a–d) are obtained by acidcatalyzed thermolytic deamination of 1,6‐disubstituted 1,6‐diamino‐1,3,5‐hexatrienes 1a–d in moderate yields. The reaction probably involves reversible conjugated enamine β‡Œ imine tautomerization indicated by the formation of t