Rh(I)-Catalyzed Arylation of <i>α</i>
-Diazo Phosphonates with Aryl Boronic Acids: Synthesis of Diarylmethylphosphonates
作者:Yujing Zhou、Yan Zhang、Jianbo Wang
DOI:10.1002/cjoc.201600487
日期:2017.5
diarylmethylphosphonates is presented. A series of phosphonate derivatives with diverse functional groups can be accessed via a rhodium catalyzed cross‐coupling reaction between α‐diazo phosphonates and arylboronicacids. Migratory insertion of rhodium carbene intermediates is postulated to be the critical step in this transformation.
Enantioselective Copper-Catalyzed O-H Insertion of α-Diazo Phosphonates
作者:Qi-Lin Zhou、Shou-Fei Zhu、Wang-Qiao Chen、Qian-Qian Zhang、Hong-Xiang Mao
DOI:10.1055/s-0030-1259710
日期:2011.4
A copper-catalyzed asymmetric O-H insertion of α-di-azophosphonates with alcohols by using chiral spiro bisoxazoline ligandswas developed. The insertion reaction exhibited good yields (upto 89%) with high enantioselectivities (up to 98% ee)and provided an efficient approach for synthesis of enantiomericallyenriched α-alkoxy and hydroxy phosphonate derivatives startingfrom readily available materials