100416-47-5Relevant articles and documents
SYNTHESIS OF NOVEL 1,4-, 3,4-, AND 4,5-DIHYDROPYRIMIDINES: FIRST SUCCESSFUL POCl3 CHLORINATION AND REGIOSELECTIVE ALKOXYCARBONYLATION
Cho, Hidetsura,Ohnaka, Yoshiko,Hayashimatsu, Mariko,Ueda, Masaru,Shima, Keiyuu
, p. 6377 - 6380 (2007/10/02)
Chlorination of 5,6-dihydropyrimidine-4-(3H)-one derivatives (1) with POCl3 gave 1,4(3,4)-dihydropyrimidines (3), whose alkoxycarbonylation (ClCOOR-Et3N or NaH) afforded regioselectively novel compounds (4).A new Pummerer type rearrangement of compound (1