The Reaction of Troponoid with Ylide. III. The Reaction of Tropone with Pyridinium Compounds
作者:Yukio Sugimura、Nobuo Soma、Yukichi Kishida
DOI:10.1246/bcsj.45.3174
日期:1972.10
Phenacylpyridinium ylide (2) reacted with tropone (1) to afford 2-hydroxy-2-phenyl-3-phenacyl-2H-cyclohepta[b]furan (3) which was converted into 2-(1′,2′-dibenzoylethyl)tropone (4). The reactions of tropone with several kinds of pyridinium bromides (7) yielded 2-substituted tropones in the presence of amine, and 1-azaazulene derivatives (9, 10, 11) in a one-step formation in the presence of ammonium acetate.
Eine verbesserte Synthese des 2-Oxocyclohepta[<i>b</i>]furans
作者:Arthur Wetzel、Errol G. Lewars、Klaus-Peter Zeller
DOI:10.1055/s-1983-30586
日期:——
BARBOSA, LUIZ-CLAUDIO ALMEIDA;MANN, JOHN;WILDE, PHILIP D.;FINCH, MARK W., TETRAHEDRON, 45,(1989) N4, C. 4619-4626
作者:BARBOSA, LUIZ-CLAUDIO ALMEIDA、MANN, JOHN、WILDE, PHILIP D.、FINCH, MARK W.
DOI:——
日期:——
WETZEL, A.;LEWARS, E. G.;ZELLER, K. -P., SYNTHESIS, BRD, 1983, N 11, 945-946
作者:WETZEL, A.、LEWARS, E. G.、ZELLER, K. -P.
DOI:——
日期:——
New routes to substituted tropones
作者:Luiz-Claudio Almeida Barbosa、John Mann、Philip D. Wilde、Mark W. Finch
DOI:10.1016/s0040-4020(01)89097-9
日期:——
We describe the synthesis of various mono- and di-substituted tropones from 8-oxabicyclo[3.2.l]octenones, and also two novel cleavage reactions of these oxabicycles.