| 摘要 |
FIELD: organic synthesis. SUBSTANCE: compounds having common formulawhere n=0.1 R,Ris atom of hydrogen or halogen, C-C-alkyl, C-C-alkoxy- or di(C-C)alkylamino groups; R,Ris atom of hydrogen or halogen, C-C-alkoxy- or oxy groups; R,Ris atom of hydrogen or C-C-alkoxy group; R=R=Ris atom of hydrogen or R+R=(CH)and Ris H. Substituted methyl(methylene)ketones (n=0) or 1,3-ketoenols (n= 1) are brought into interaction with substituted benzaldehydes. The process takes place in the presence of perchloric acid and triethyl orthoformiate. EFFECT: produces ingredients for organic synthesis. |
