5-烯丙基嘧啶-4-酮与二氯甲烷中的芳基亚硫酰氯反应,生成5-[(2-芳基硫烷基)-3-氯丙基]-嘧啶-4-酮,在乙酸钠的作用下环化成6-芳基硫烷基- 6,7-二氢-5 H-吡喃并[2,3- d ]嘧啶。在硝基甲烷中进行类似反应时,发生分子内亲电环化,得到6-[[(芳基硫烷基)甲基] -5,6-二氢呋喃[2,3- d ]嘧啶。
6-alkyl and 5,6-dialkyl-2-methoxy-4(3H)- pyrimidinones in the transformations of pyrimidines—2
作者:M. Botta、M. Cavalieri、D. Ceci、F. De Angelis、G. Finizia、R. Nicoletti
DOI:10.1016/0040-4020(84)85016-4
日期:1984.1
The synthesis of 6-alkyl and 5,6-dialkyl-2-methoxy-4(3H)-pyrimidinones 3 is described. Their versatility to be transformed into 6-alkyl and 5,6-dialkyluracils 4(a-h), 6-alkyl and 5,6-dialkyl-3-methyluracils 7(a,e,f) and 6-alkyl and 5,6-dialkyl-2-alkoxy-4(3H)-pyrimidinones 5(a-i) is also shown.
GAPOYAN, A. S.;MIRZOYAN, V. S.;XACHATRYAN, V. EH.;MELIK-OGANDZHANYAN, R. +, ARM. XIM. ZH., 41,(1988) N 6, 339-346
作者:GAPOYAN, A. S.、MIRZOYAN, V. S.、XACHATRYAN, V. EH.、MELIK-OGANDZHANYAN, R. +
DOI:——
日期:——
Fused pyrimidine systems: XVII. Arylsulfenylation of 5-allylpyrimidine-4(3H)-one derivatives. Synthesis of arylsulfanyl-substituted 5,6-dihydrofuro[2,3-d]- and 6,7-dihydro-5H-pyrano[2,3-d]pyrimidines
作者:A. I. Vas’kevich、M. V. Vovk
DOI:10.1134/s1070428017020221
日期:2017.2
5-Allylpyrimidine-4-ones react with arylsulfenyl chlorides in dichloromethane with the formation of 5-[(2-arylsulfanyl)-3-chloropropyl]-pyrimidine-4-ones that under the action of sodium acetate undergo cyclization into 6-arylsulfanyl-6,7-dihydro-5H-pyrano[2,3-d]pyrimidines. At performing similar reactions in nitromethane an intramolecular electrophilic cyclization occurs affording 6-[(arylsulfanyl)methyl]-5
5-烯丙基嘧啶-4-酮与二氯甲烷中的芳基亚硫酰氯反应,生成5-[(2-芳基硫烷基)-3-氯丙基]-嘧啶-4-酮,在乙酸钠的作用下环化成6-芳基硫烷基- 6,7-二氢-5 H-吡喃并[2,3- d ]嘧啶。在硝基甲烷中进行类似反应时,发生分子内亲电环化,得到6-[[(芳基硫烷基)甲基] -5,6-二氢呋喃[2,3- d ]嘧啶。