Page 1. SYNTHETIC COMMUNICATIONS, 23(21), 2965-2971 (1993) ... 2965 Copyright 0 1993 by Marcel Dekker, Inc. Page 2. 2%6 ALMANSA ET AL. ... Scheme I1 for 3 h followed by distillation to half of the initial volume. The mixture was poured into H20 and extracted with Et20. ...