Thermolysis of Phenyl 3-Guaiazulenecarboxylate and the<i>p</i>-Acetyl and<i>p</i>-Methoxy Derivatives
作者:Shinji Kurokawa、Arthur G. Anderson, Jr.
DOI:10.1246/bcsj.49.1650
日期:1976.6
Thermolysis of p-acetylphenyl 3-guaiazulenecarboxylate (1) results in loss of the ester group. In contrast, thermolysis of phenyl 3-guaiazulenecarboxylate (2) or p-methoxyphenyl 3-guaiazulenecarboxylate (3) gives (i) loss of the ester group, (ii) loss of the 1-methyl group with concomitant rearrangement of the ester group to the 1-position, (iii) interchange of the ester and 1-methyl groups, and (iv)
对乙酰基苯基 3-guaiazulenecarboxylate (1) 的热解导致酯基团的丢失。相比之下,苯基 3-愈创甘油醚羧酸酯 (2) 或对甲氧基苯基 3-愈创甘油醚羧酸酯 (3) 的热解导致 (i) 酯基团丢失,(ii) 1-甲基基团丢失,同时酯基团重排为1-位,(iii) 酯和 1-甲基的互换,以及 (iv) 环化为 5-isopropyl-7-methyl-1,2-dihydrocyclopenta[c,d]azulen-1-one (9) .