... James G. Smith,* Sudha S. Welankiwar, Noreen G. Chu, Eric H. Lai, and Susan J. Sondheimer Department of Chemistry, University of Waterloo, Waterloo, Ontario NZL 3G1 Canada Received April 17, 1981 ... Page 3. 4660 J. Org. ... (8) Weiss, R.; "Organic Synthesis", Collect. Vol. ...