Preparation of title compounds 5, sulfur analogues of the natural insect antijuvenile hormones precocene I and II, is described. The synthetic pathway involves conversion of the appropriate thiophenol 2 into the corresponding thiochroman-4-one 4 followed by reduction and dehydration. The 13C nmr data for all the above products are also reported.
描述了标题化合物5的制备,标题化合物5是天然昆虫抗幼激素激素前十烯I和II的
硫类似物。合成途径包括将合适的
苯酚2转化为相应的
苯并二氢吡喃-4-酮4,然后进行还原和脱
水。还报告了上述所有产品的13 C nmr数据。