in benzene Addn. of mixt. of org. materials to a stirred soln. of B-compd. (C6H6) at room temp., stirring (room temp., 115 h).; Filtn. gives 96percent of NEt3*HCl and 90percent of borazine (obtained from filtrate). Purifn. by crystn. from hexane results in 71percent pure material. Elem. anal.;