Experiments towards the Preparation of 6??Hydroxy??, 6??Methoxy??, and 6??(hydroxyphenyl)??2, 3??dihydro??1, 4??diazepinium Salts and 1, 2??Dihydro??5??(Hydroxyphenyl)?? …
D Lloyd, C Reichardt, M Struthers
文献索引:Lloyd, Douglas; Reichardt, Christian; Struthers, Margot Liebigs Annalen der Chemie, 1986 , # 8 p. 1368 - 1379
Abstract The preparation of a number of 2, 3-dihydro-6-(hydroxyphenyl)-1, 4-diazepinium salts (11c–f) and of 1, 2-dihydro-5-(hydroxyphenyl)-2-oxopyrimidinium salts (17a, b) from 3- (hydroxyphenyl) vinamidinium salts (10b, c) is described. Attempted preparation of a 3-(2- hydroxyphenyl) vinamidinium salt gave instead a mixture of formyl-substituted benzofuranones (15 and 16). Attempted preparation of 2, 3-dihydro-6-hydroxy-1, 4- ...