Direct Synthesis of β-Amino Aldehydes from Linear Allylic Esters Using O<sub>2</sub> as the Sole Oxidant
作者:Shu-Hui Lei、Ya Zhong、Xian-Peng Cai、Qing Huang、Jian-Ping Qu、Yan-Biao Kang
DOI:10.1021/acs.orglett.1c03619
日期:2021.12.3
A tandem isomerization–anti-Markovnikov oxidation of linear allylic imidic esters is developed using bis(benzonitrile)palladium chloride as the catalyst and O2 as the sole oxidant, regiospecifically giving β-amino aldehydes as the product. tert-Butyl nitrite works as a simple, and the only, redox cocatalyst. tBuOH proves to be a crucial solvent for achieving excellent yield and specificity toward anti-Markovnikov
使用双(苄腈)氯化钯作为催化剂和 O 2作为唯一氧化剂,开发了线性烯丙基酰亚胺酯的串联异构化 -抗马尔科夫尼科夫氧化反应,区域特异性地产生 β-氨基醛作为产物。亚硝酸叔丁酯是一种简单且唯一的氧化还原助催化剂。t BuOH 被证明是一种关键溶剂,可用于获得优异的产率和抗马尔科夫尼科夫醛产物的特异性。