6H-二苯并[b,d]吡喃-6-酮及其衍生物的合成方法研究进展

Progress in Syntheses of 6H-dibenzo[b,d]pyran-6-one and Its Derivatives

6H-二苯并[b,d]吡喃-6-酮类化合物因其广泛的生物活性以及荧光性能而越来越受到化学家们的关注。本文综述了6H-二苯并[b,d]吡喃-6-酮类化合物的主要合成方法,包括分子内关环法、碳氢键活化法、合成苯环法、氧化法,并比较了这四类合成方法的优缺点。今后,如何高效、经济、绿色地合成在特定位置含特定取代基的6H-二苯并[b,d]吡喃-6-酮及其类似物,仍是天然产物合成领域的一个重大课题。

6H-dibenzo[b,d]pyran-6-one compounds have received increasing attention from chemists due to their wide range of biological activities and fluorescent properties. The synthetic methods of 6H-dibenzo[b,d] pyran-6-one and its derivatives,including intramolecular cyclization forming pyran ring,C-H bond activation intramolecular cyclization,coupling reaction to form phenyl skeletons,through intramolecular lacotination of substituted biphenyl compounds,were reviewed. The advantages and disadvantages of all these synthetic methods were compared and discussed in detail. In the future,how to efficiently,economically and greenly synthesize 6H-dibenzo[b,d]pyran-6-one and its analogues containing specific substituents at specific positions is still a major issue in the field of natural product synthesis.