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Shooting Stars of the Small Screen Pub Date : 2009-12-31 DOI:10.7560/718494-004

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摘要

芳香醛的-烷基烯丙酸酯得到4 H -1,3-二氧辛-6-基丙酸14，具有优异的非对映选择性。机理研究表明，这些复杂杂环是由α -和γ -位置上连续的Morita-Baylis-Hillman反应、缩化反应和最终的分子内oxa-Michael反应组成的四步反应级联反应的结果。

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-alkyl allenoate esters aromatic aldehydes to give 4 H -1,3-di-oxin-6-yl-propanoates 14 with excellent diastereoselectivity. Mech- anistic studies revealed that these complex heterocycles are obtained as a result of a four-step reaction cascade consisting of two consec-utive Morita–Baylis–Hillman reactions on the α - and γ -position, an acetalization, and a final ring-closing intramolecular oxa-Michael reaction.

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Shooting Stars of the Small Screen

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