... Please enable JavaScript to use all the features on this page. Tetrahedron Letters. Volume 35, Issue 9, 28 February 1994, Pages 1427–1430. Cover image Cover image. ... References. 1; a DHR Barton, SD Bévière, W. Chavasiri, D. Doller, B. Hu; Tetrahedron Lett., 34 (1993), p. 1871 ...