Asymmetric synthesis of secondary benzylic alcohols via arene chromium tricarbonyl complexes
作者:M. Rute G. da Costa、M. João M. Curto、Stephen G. Davies、Fátima C. Teixeira、James E. Thomson
DOI:10.1016/j.tet.2018.08.033
日期:2018.10
(Aryl aldehyde)- and (aryl ketone)-chromium tricarbonyl complexes ortho-substituted with the chiral auxiliary O-methyl-N-(α-methylbenzyl)hydroxylamine undergo diastereoselective addition of Grignard reagents and Super-Hydride®, respectively, to give the corresponding secondary alcohols in high diastereoisomeric purity. These compounds may be easily decomplexed and deprotected to give the corresponding
(芳基醛) -和(芳基酮) -铬三羰基复合物的邻-取代的与手性助剂ø甲基ñ - (α -甲基苄基)羟胺经历非对映选择性加成格氏试剂和Super-氢化物的®,分别得到非对映异构体纯度较高的相应仲醇。这些化合物可以很容易地分解和去保护,得到相应的对映体纯的氨基醇。