Supplementary Material Available. Experimental procedures for these reactions will appear following these pages in the micro- film edition of this volume of this journal. Photocopies of the sup- plementary material from this paper only or microfiche (105 X 148 mm, 24X reduction, negatives) containing all of the supplementary materiai for the papers in this issue may be obtained from the Business Office, Books and Journals Division, American Chemical Society, 1155 16th St., NW, ...