Cd. Davies et al., Enhanced asymmetric induction in cycloadditions to bridgehead-chiral vinyldioxazaborocines, TETRAHEDR L, 41(21), 2000, pp. 4229-4233
Vinyl dioxazaborocines 5 with asymmetric centres on the nitrogen bridgehead
substituent have been prepared and assayed in nitrile oxide and nitrone cy
cloadditions, giving asymmetric inductions of up to 70 and 74% ee, respecti
vely. (C) 2000 Elsevier Science Ltd. All rights reserved.