Verfahren zur Herstellung von Propylenharnstoffaldehyden

摘要

1,193,346. Aldehydes derived from hexahydropyrimidine-2-ones and 2-thiones. BADISCHE ANILIN- & SODA-FABRIK A.G. 14 Sept. 1967 [15 Sept. 1966] No. 41970/67. Heading C2C. Aldehydes (I) are prepared by reacting the methylol compounds (II) with about the stoichiometric amount of HCR7R8CHO, at 0-120‹ C. in presence of an acid In the above formulµ, X is O or S, R1 is H, alkyl or CR7R8CHO R2 . . . R6 are H or alkyl, R7 and R8 are alkyl, R9 is H or-when R6 is alkyl-R9 is the same alkyl group, and R10 is H, alkyl or CH 2 OR9.