作者:K Mallik Yadav、Pramod K Mohanta、Hiriyakkanavar Ila、Hiriyakkanavar Junjappa
DOI:10.1016/0040-4020(96)80832-5
日期:1996.10
Regiospecifically substituted 1-methyl- and 2-methylnaphthalenes, 5-methyl- and 6-methyl-1,2,3,4-tetrahydroanthracenes have been synthesized in good yields through 1,2- addition of the corresponding α-lithio-o-or m-xylenes onto α-oxoketene dithioacetals or their dihydro derivatives followed by cyclodehydration of the resulting carbinols in the presence of borontrifluoride etherate.
区域专一性取代的1-甲基-和2-甲基萘,5-甲基-和6-甲基-1,2,3,4- tetrahydroanthracenes已经以良好的收率通过1,2-加成相应的合成α -lithio- ö -或米-xylenes到α-oxoketene二硫或它们的衍生物二氢接着在三氟化硼的醚合物的存在下所得到的原醇的环化脱水。