Heterocyclization of functionalized heterocumulenes with C,N-, C,O-, and C,S-binucleophiles: X. 1-Chloroalkyl isocyanates in the synthesis of new 5-aroyldihydropyrimidines
摘要:
Reactions of 1-chlorobenzyl isocyanates with N,S-aroylketene acetals depending on the conditions provide either 5-aroyl-6-methylsulfanyl-3,4-dihyropyrimidin-2(1H)-ones or 5-aroyldihyropyrimidine-2,4(1H,3H)-diones. 1-Aryl-2,2,2-trifluoro-1-chloroethyl isocyanates in a similar condensation gave 5-aroyl-6-methylsulfanyl-2-trifluoromethyl-2,3-dihyropyrimidin-4(1H)-ones.
Heterocyclization of functionalized heterocumulenes with C,N-, C,O-, and C,S-binucleophiles: X. 1-Chloroalkyl isocyanates in the synthesis of new 5-aroyldihydropyrimidines
作者:O. V. Kushnir、V. A. Sukach、M. V. Vovk
DOI:10.1134/s1070428009050182
日期:2009.5
Reactions of 1-chlorobenzyl isocyanates with N,S-aroylketene acetals depending on the conditions provide either 5-aroyl-6-methylsulfanyl-3,4-dihyropyrimidin-2(1H)-ones or 5-aroyldihyropyrimidine-2,4(1H,3H)-diones. 1-Aryl-2,2,2-trifluoro-1-chloroethyl isocyanates in a similar condensation gave 5-aroyl-6-methylsulfanyl-2-trifluoromethyl-2,3-dihyropyrimidin-4(1H)-ones.