作者:P. Hugh Helferty、Paul Mahler、Peter Yates
DOI:10.1039/c39790001084
日期:——
6,6,8-Trimethylspiro[2.5]oct-7-en-4-one (2) and 6,6-dimethyl-8-methylenespiro[2.5]octan-4-one (3) undergo homoconjugate addition with the anion derived from isophorone and with morpholine; the reactions of (3) are much more rapid than those of (2), reflecting greater spiroactivation in the case of (3).
6,6,8-三甲基螺[2.5] oct-7-en-4-one(2)和6,6-二甲基-8-亚甲基螺[2.5] octan -4-one(3)与衍生的阴离子进行均共轭加成来自异佛尔酮和吗啉;(3)的反应比(2)的反应快得多,反映出在(3)的情况下更大的螺环活化。