A new 1,4-elimination of benzenesulfinic acid from β-keto phenylsulphones Via their tosylhydrazones
作者:Roberto Ballini、Giovanna Bosica、Enrico Marcantoni
DOI:10.1016/0040-4020(96)00593-5
日期:1996.8
Reaction of β-keto phenylsulphone tosylhydrazones 2 with 2 eq. of DBU, at r.t. in dichloromethane, affords α,β-unsaturated ketone tosylhydrazones 4, via the tosylazoalkenes 3 obtained by 1,4-elimination of benzenesulfinic acid.
β-酮基苯基砜甲苯磺酰2 2与2eq。DBU的,在二氯甲烷中室温下,得到α,β不饱和酮的甲苯磺酰腙4,经由该tosylazoalkenes 3由苯亚磺酸的1,4-消除获得。