Asymmetric selenomethoxylation of alkenes with camphorselenenyl sulfate
摘要:
By reaction with ammonium persulfate the easily available diselenide derived from (1R)-(+)-camphor was converted into the camphorselenenyl sulfate. This chiral electrophilic selenium reagent reacted at room temperature with alkenes in the presence of methanol to afford selenomethoxylated adducts in good yields and with moderate to good facial selectivity. The two diastereomeric addition products could be separated in most cases. (C) 1998 Elsevier Science Ltd. All rights reserved.
Asymmetric methoxyselenenylations with camphor-based selenium electrophiles
作者:Thomas G. Back、Siqiao Nan
DOI:10.1039/a806707d
日期:——
The asymmetric methoxyselenenylation of olefins was achieved with a series of camphor-based selenenyl triflates, of which the readily available 2-oxo analog 2a proved the most effective.