Moritani,I. et al. Bulletin of the Chemical Society of Japan, 1967 , vol. 40, p. 2129 - 2134 Full Text Show Details Heller,H.G.; Piggott,R.D. Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1978 , p. 989 - 994