o-Quinonoid compounds. Part II. 1,4-Diphenyl-2-benzopyran-3-one and its iron carbonyl complexes
作者:J. M. Holland、D. W. Jones
DOI:10.1039/j39700000530
日期:——
1,4-Diphenyl-2-benzopyran-3-one is prepared by dehydration–rearrangement of 1,3-dihydroxy-1,3-diphenyl-indian-2-one and by dehydration of o-benzoylphenyl(phenyl)acetic acid. The reactions of the pyrone and its conversion into related o-quinonoid compounds are described. The interconvertible iron carbonyl complexes of the pyrone are prepared by reaction with dodecacarbonyltri-iron. The role of metal–ligand
1,4-二苯基-2-苯并吡喃-3-酮是通过1,3-二羟基-1,3-二苯基-茚满-2-一的脱水重排和邻苯甲酰基苯基(苯基)乙酸的脱水制得的。描述了吡喃酮的反应及其转化为相关的邻醌化合物。吡喃酮的可相互转化的羰基铁配合物是通过与十二羰基三铁反应制备的。讨论了金属-配体σ键在其中一种配合物中的作用。