Synlett 2015; 26(11): 1528-1532
DOI: 10.1055/s-0034-1380290
letter
© Georg Thieme Verlag Stuttgart · New York

Asymmetric Synthesis of Tertiary α-Hydroxy Phosphonic Acid Derivatives under Aerobic Oxidation Conditions

Biplab Maji*
Molecular Catalyst Research Center, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi 487-8501, Japan   Email: biplabmaji@isc.chubu.ac.jp   Email: hyamamoto@isc.chubu.ac.jp
,
Hisashi Yamamoto*
Molecular Catalyst Research Center, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi 487-8501, Japan   Email: biplabmaji@isc.chubu.ac.jp   Email: hyamamoto@isc.chubu.ac.jp
› Author Affiliations
Further Information

Publication History

Received: 20 January 2015

Accepted after revision: 11 February 2015

Publication Date:
05 March 2015 (online)


This manuscript is dedicated to Peter Vollhardt, who launched SYNLETT 25 years ago and since then has continuously served in a number of important editorial capacities.

Abstract

The copper-catalyzed asymmetric α-hydroxylation of β-ketophosphonates, using in situ generated nitrosocarbonyl compounds as electrophilic source of oxygen, is reported. The reaction merges aerobic oxidation and Lewis acid catalysis. α-Aminoxy-β-ketophosphonates were synthesized in high yields (up to 97% yield) and high enantioselectivities (up to >99% ee).

Supporting Information