Tetrahedron Letters p. 4911 - 4914 (1985)
Update date:2022-09-26
Topics:
Schmitz, E.
Sonnenschein, H.
Kuban, R. J.
3,3-Dimethyl-2-phenyl-cyclopropenecarboxylic acid 4 is prepared, starting with chlorophenyldiazirine 1.With acids 4 yields the open chain carboxylic acids 5, 6 and 7.Thionylchloride leads to the cyclobutenone 10, DCC to the acid anhydrides 11 and 13.
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Doi:10.1039/b716347a
(2008)Doi:10.1021/om8005239
(2008)Doi:10.1039/b805451g
(2008)Doi:10.1016/j.tet.2008.05.101
(2008)Doi:10.1007/s10593-008-0105-6
(2008)Doi:10.1246/cl.1986.479
(1986)
