generation of 3-sulfonylated 1-indenones and 3-arylated (Z)-indenes through radical cyclization cascades of o-alkynylbenzonitriles with sulfonyl hydrazides was established by combining copper(II) with tert-butyl hydroperoxide (TBHP) as a catalytic oxidative system. With the installation of the aryl group (R1) into the alkynyl unit, sulfonyl radicals triggered addition–cyclization cascades to access 3-sulfonylated
通过将
铜(II)与
叔丁基过氧化氢(
TBHP)结合催化,建立了通过邻炔基
苄腈与磺酰
肼的自由基环化级联反应,可控制底物控制的3-磺酰化1-
茚满和3-芳基化(Z)-
茚基的生成。氧化系统。通过将芳基(R 1)安装到炔基单元中,磺酰基通过使用Cu /
TBHP系统触发加成环化级联反应,以高收率获得3-磺酰化1-
茚满,而一系列新的功能化3-当o为0时,芳基化的(Z)-
茚烯以良好的收率获得。在上述条件下,对具有炔基单元中的烷基的-炔基
苄腈进行富电子性质的芳基磺酰
肼。