Heterocycles p. 2097 - 2100 (1997)
Update date:2022-09-26
Topics:
Ohmori, Naoki
Yoshimura, Miki
Ohkata, Katsuo
Heating of the title compounds (1a,b) at 130°C in o-dichlorobenzene afforded [5+2] annulation products (2a,b) in 70% yield; 27-33% d.e. via 3-oxidopyrylium ylide. Reaction of the title compounds (1b,c) in the presence of ZnCl2 at 40°C furnished
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Doi:10.1021/jo01260a042
(1969)Doi:10.1021/jo01261a021
(1969)Doi:10.1246/bcsj.41.748
(1968)Doi:10.1021/jo971449m
(1998)Doi:10.1021/jm970296s
(1998)Doi:10.1021/om970418e
(1998)
