| abstract |
THE FOLLOWING DESCRIPTION PRESENTS A PROCEDURE FOR THE PRODUCTION OF QUEEN, DIACERREINE AND OTHER DERIVATIVES DIACILO OF THE SAME, WHICH INCLUDES THE FOLLOWING PHASES: TREATMENT OF A DIFENYLKETONE, IN WHICH R SUB, 1} IS '', WHERE R '' AND R '' '' SON H, A RENT OR AROMATIC GROUP; R SUB, 2} IS H OR A PROTECTIVE GROUP; R SUP, 3} IS ADO 1 AMINOANTRAQUINONA; FOLLOWED BY DIAZOTIZATION, REPLACEMENT OF THE PROTECTIVE AND ACILATION GROUP. |