Tetrahedron Letters p. 6377 - 6380 (1986)
Update date:2022-08-05
Topics:
Cho, Hidetsura
Ohnaka, Yoshiko
Hayashimatsu, Mariko
Ueda, Masaru
Shima, Keiyuu
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
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