Untersuchungen in der Benztropylium-Reihe. III. 2,7-Polymethylen-4,5-benztropone
作者:Else Kloster-Jensen、N. Tarköy、A. Eschenmoser、E. Heilbronner
DOI:10.1002/hlca.19560390321
日期:——
The preparation and the spectroscopic properties of 2,7-polymethylene-4, 5-benzotropones are described. The trends in these properties with decreasing number of methylene groups in the polymethylene ring are due to the steric inhibition of the benzotropylium resonance.
描述了2,7-聚亚甲基-4,5-苯甲酮的制备及其光谱性质。随着聚亚甲基环中亚甲基数量的减少,这些性质的趋势是由于对苯乙二胺共振的空间抑制。