Organocatalytic Asymmetric Decarboxylative Amination of β-Keto Acids: Access to Optically Active α-Amino Ketones and 1,2-Amino Alcohols
作者:Yi Wei、Heng-Xia Zhang、Jun-Liang Zeng、Jing Nie、Jun-An Ma
DOI:10.1021/acs.orglett.7b00797
日期:2017.4.21
An organocatalyticasymmetric decarboxylative amination reaction of β-keto acids is described. Under mild reaction conditions, a series of chiral α-amino ketones were obtained in good to high yields (up to 99%) and enantioselectivities (up to 95% ee). A chiral 1,2-amino alcohol was synthesized from the corresponding decarboxylative amination product in several steps without loss of enantioselectivity
Synthesis and conformational analysis of 2-amino-1,2,3,4-tetrahydro-1-naphthalenols
作者:Antonio Delgado、José Miguel Garcia、David Mauleon、Cristina Minguillon、Joan Ramon Subirats、Miguel Feliz、Francisco Lopez、Dolores Velasco
DOI:10.1139/v88-088
日期:1988.3.1
followed by reduction of the intermediate hydroxyimino tetralone and (or) Neberrearrangement of the tosyloxy derivatives 7a–e. Stereoselective reduction of the C(1) carbonyl group of acetamidotetralones 5a–e or aminotetralones 8a–e afforded the corresponding acetamido or aminotetralols, respectively, of OH/N trans stereochemistry whereas an opposite stereoselectivity was observed in reduction of C(8)-OCH3