Carbanions. XI. Reactions of 4-chloro-1,1,1-triphenylbutane, 5-chloro-1,1,1-triphenylpentane, and 1,1,1-triphenylethane with alkali metals. 1,4 and 1,5 Migration of phenyl
combination of “TiCl2(cat)” and Zn (cat=catecholate) facilitates the homolytic cleavage of “non-activated” alcohol C−O bonds. All aliphatic primary, secondary and tertiary alcohols serve as good substrates. This method was applied to radical conjugate addition reactions successfully, and mechanistic studies indicate that alkyl chlorides are not intermediates. The active species is a 1 : 2 complex of alkoxide
Photoinduced Borylation of the Inert C(sp<sup>3</sup>)–O Bond of Alkyl Heteroaryl Ethers
作者:Hua Wang、Jing-Feng Zhao、Xing-Li Zhu、Qin-Qin Tian、Wei He
DOI:10.1021/acs.orglett.3c02038
日期:2023.9.8
4-dimethylaminopyridine (DMAP) and bis(catecholato)diborane(B2cat2) was developed. Despite the high reducing power, various substrates with liable functional groups were well-tolerated as well as ethers derived from natural products and medicinal-relevant compounds. Mechanistic investigation implied that an intra-single electron transfer process in an electron donor–acceptorcomplex formed from ethers with the
开发了在 4-二甲基氨基吡啶 (DMAP) 和双(儿茶酚)二硼烷 (B 2 cat 2 )存在下,具有非常负还原电位的烷基杂芳基醚的光诱导还原 C 烷基 -O 硼基化。尽管还原能力很高,但各种具有可靠官能团的底物以及源自天然产物和医药相关化合物的醚都具有良好的耐受性。机理研究表明,由醚与 B 2 cat 2和 DMAP 加合物形成的电子供体-受体复合物中应该涉及单内电子转移过程。