... Tetrahedron Letters. Volume 23, Issue 14, 1982, Pages 1471–1474. Cover image Cover image. ... Lett. (1982), p. 65. Full Text via CrossRef. 8; T.Umemoto, Y.Kuriu, and S.Nakayam, Tetrahedron Lett., submitted. ... The letter m means the number of carbons in a n-perfluoroalkyl group. ...