作者:Michael G. Silvestri、Chi-Huey Wong
DOI:10.1021/jo001392v
日期:2001.2.1
diethyl acetal sulfide 8 with methanesulfenyl bromide at low temperature results in an efficient thiirane ring opening to a halo disulfide 9. The bromine in this halo disulfide is easily substituted by silver acetate, sodium azide, sodium iodide, and silver nitrate. Treatment of 9 with tetrabutylammonium acetate yields a novel dehydrohalogenation product 12. Silica gel converts bromide 9 into a disulfide-substituted
在低温下用甲硫基溴化物处理丙烯醛二乙缩醛硫醚8可以有效地打开硫杂环丁烷9的硫杂环丁烷环。该卤素二硫键中的溴很容易被乙酸银,叠氮化钠,碘化钠和硝酸银取代。用乙酸四丁基铵处理9可得到新型的脱卤化氢产物12。硅胶将溴化物9转化为丙烯醛15的二硫键取代形式。2-硫代甘油醛13的正交保护形式可被脱保护成该醛的有用形式。