Literature: Horspool, William M.; Khalaf, Abedawn I. Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1989 , p. 1147 - 1152
Literature: Horspool, William M.; Khalaf, Abedawn I. Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1989 , p. 1147 - 1152