T. Strelow, J. Voss, G. Adiwidjaja
Jul 1, 1992
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Influential Citations
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Journal
Zeitschrift für Naturforschung B
Abstract
Ethyl 4-bromo-2-(diphenylmethylene)-3-oxo-5,5-diphenyl-4-pentenoate (2) is formed on reaction of 2,4-bis-(diphenylmethylene)-1,3-cyclobutane dione (1) with bromine in the presence of ethanol. 2, C32H25BrO3, was characterized by X-ray structure analysis. Space group (orthorhombic) PNa21, Z = 8, a = 3459.3(2), b = 989.9(1), c = 1541.0(1) pm, R = 0.084.