Synthesis of 6-methoxy-2,2-dimethyl-2<i>H</i>-1-benzothiopyran and 6,7-dimethoxy-2,2-dimethyl-2<i>H</i>-1-benzothiopyran, sulfur analogues of precocene I and precocene II
作者:F. Camps、O. Colomina、J. Coll、A. Messeguer
DOI:10.1002/jhet.5570200456
日期:1983.7
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。