Nickel-Catalyzed Reductive Cleavage of Carbon–Oxygen Bonds in Anisole Derivatives Using Diisopropylaminoborane
作者:Takuya Igarashi、Akira Haito、Naoto Chatani、Mamoru Tobisu
DOI:10.1021/acscatal.8b02009
日期:2018.8.3
of a methoxy group on an aromatic ring allows this group to be used as a traceless activating and directing group for aromatic functionalization reactions. Although several catalytic methods for the reductive cleavage of anisole derivatives have been reported, all are applicable only to π-extended aryl ethers, such as naphthyl and biphenyl ethers, while monocyclic aryl ethers cannot be reduced. Herein
芳族环上甲氧基的催化除去使得该基团可用作芳族官能化反应的无痕活化和导向基团。尽管已经报道了几种用于苯甲醚衍生物的还原裂解的催化方法,但是所有方法仅适用于π-延伸的芳基醚,例如萘基和联苯醚,而单环芳基醚不能被还原。在本文中,我们报道了使用二异丙基氨基硼烷作为还原剂的镍催化的芳基醚中C–O键的还原裂解反应。与以前报道的方法不同,这种还原剂可在范围更广的芳基醚底物(包括带有各种官能团的单环和杂环醚)中有效地降低C-O键。