A broad variety of unactivated acyclic and alicyclic substrates cleanly undergo site‐selective alkenylation of unactivated C(sp3)−H bonds with 1,2‐bis(phenylsulfonyl)ethene in the presence of persulfate. This simple transformation furnishes (E)‐2‐alkylvinylphenylsulfones in up to 88 % yield. In contrast with the previously reported decatungstate protocol, the current method is applicable to alkenylation
Synergistic control over the SH2 transition states of hydrogenabstraction exploiting polar and steric effects provides a promising cooperative strategy for site‐selective C(sp3)−H functionalization using decatungstate anion photocatalysis. By using this photocatalytic approach, the C−H bonds of substituted lactones and cyclic ketones were functionalized selectively. In the remarkable case of 2‐isoamyl
利用极性和空间效应对氢提取的S H 2过渡态进行协同控制,为利用去阳离子化阴离子光催化的位点选择性C(sp 3)-H功能化提供了一种有前途的合作策略。通过使用这种光催化方法,取代的内酯和环状酮的CH键被选择性地官能化。在带有5个甲基,5个亚甲基和3个次甲基CH键的2-异戊基4-叔丁基环己酮(1 t)的显着情况下,异戊基绳索中的1个次甲基CH键被选择性地官能化。
Grignard, Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, 1902, vol. 135, p. 629
作者:Grignard
DOI:——
日期:——
FUJITA TSUTOMU; WATANABE SHOJI; SUGA KYOICHI; INABA TERUHIKO, J. CHEM. TECHNOL. AND BIOTECHNOL., 1979, 29, NO 2, 100-106
作者:FUJITA TSUTOMU、 WATANABE SHOJI、 SUGA KYOICHI、 INABA TERUHIKO