... Tetrahedron. Volume 37, Issue 2, 1981, Pages 233-284. Cover image. ... Open this preview in PDF. Download full text in PDF. Irirulu-ifnm Vol .17. pp. ... 234 M. MiKOi-AJCZYK and P. KIELBASINSKI discussed in many excellent reviews.2 - 7 The first was provided by Khorana2 in 1953 ...