中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
6-甲基-3,4-二氢-2H-苯并噻喃1,1-二氧化物 | 6-methylthiochroman-S,S-dioxide | 1077-61-8 | C10H12O2S | 196.27 |
—— | 1-(6-Methyl-3,4-dihydro-2H-1-benzothiopyran-7-yl)ethan-1-one | 92595-61-4 | C12H14OS | 206.31 |
A simple and environmentally friendly method to prepare S-heterocycles by cyclization of aromatic thiols and diols with H2O as a byproduct is described. The Sc(OTf)3-catalyzed dehydrative cyclizations of aromatic thiols and diols provided the corresponding thiopyran and thiophene derivatives. Control experiments were also performed to obtain insights into the reaction pathway