Palladium(0)/PAr<sub>3</sub>-Catalyzed Intermolecular Amination of C(sp<sup>3</sup>)H Bonds: Synthesis of β-Amino Acids
作者:Jian He、Toshihiko Shigenari、Jin-Quan Yu
DOI:10.1002/anie.201502075
日期:2015.5.26
An intermolecularC(sp3)Hamination using a Pd0/PAr3 catalyst was developed. The reaction begins with oxidative addition of R2NOBz to a Pd0/PAr3 catalyst and subsequent cleavage of a C(sp3)H bond by the generated PdNR2 intermediate. The catalytic cycle proceeds without the need for external oxidants in a similar manner to the extensively studied palladium(0)‐catalyzed CH arylation reactions. The
分子间C(SP 3) ħ胺化使用Pd 0 / PAR 3催化剂的开发。反应开始与氧化加成的R 2 Ñ OBZ给PD 0 / PAR 3催化剂和C的随后裂解(SP 3) H键由所生成的Pd NR 2中间。与广泛研究的钯(0)催化的CH芳基化反应相似,无需外部氧化剂即可进行催化循环。缺电子的三芳基膦配体对此C(sp 3)至关重要发生氨化反应。
Synthesis of deuterium-labeled simvastatin
作者:Lei Tian、Jie Tao、Liqin Chen
DOI:10.1002/jlcr.1906
日期:2011.7
This study describes the synthesis of deuterium-labeled simvastatin. The stable isotope-labeled compound was prepared starting from lovastatin in nine steps with 9% overall yield.