Journal fur Praktische Chemie - Chemiker-Zeitung p. 51 - 57 (1998)
Update date:2022-08-03
Topics: Characterization Yield 1,3-oxazines Purification and Isolation
Yamagata, Kenji
Akizuki, Keiko
Yamazaki, Motoyoshi
2-Amino-4,5-dihydro-3-furancarbonitriles (1) react with a slight excess of dibenzoyldiazomethane in the presence of rhodium(II) acetate to give 1,3-oxazin-4-ones (2). With three equivalents of dibenzoyldiazomethane compounds 1 react to afford furo[2,3-b]pyran-3a-carbonitriles (3). Compound 3a was also obtained by treatment of 2a with two equivalents of dibenzoyldiazomethane. Johann Ambrosius Barth 1998.
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Doi:10.1246/cl.1998.203
(1998)Doi:10.1002/(sici)1521-3749(199803)624:3<443::aid-zaac443>3.0.co;2-a
(1998)Doi:10.1016/S0040-4020(98)00008-8
(1998)Doi:10.1055/s-0028-1216726
(2009)Doi:10.1016/S0022-2860(00)00693-1
(2001)Doi:10.1021/jm980545s
(1999)
