... Tetrahedron. Volume 53, Issue 14, 7 April 1997, Pages 5325–5338. Cover image Cover image. ... Revised 14 February 1997, Accepted 20 February 1997, Available online 26 March 1998. Abstract. ... E. 1.(b); AS Rao, SK Paknikar, JG Kirtane; Tetrahedron, 39 (1983), pp. 2323–2367. ...