2,4-二氧戊酸甲酯与氯丁烯的光加成反应

The reports of Institute of Advanced Material Study Kyushu University Pub Date : 1997-12-15 DOI:10.15017/7869

T. Hatsui, 初井敏英, T. Hashiguchi, 橋口知一, H. Takeshita, 竹下齊, トシヒデハツイ, トモカズハシグチ, ヒトシタケシタ

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摘要

2,4-二氧丁酸甲酯与氯丁烯的光加成反应得到2个deMayo型加合物:3-(i -氯乙烯基)-2,6-二氧庚酸甲酯和3-氯-2,6-二氧-3-乙烯基庚酸甲酯。没有观察到区域异构体，4-取代酯。将光加合物转化为环己酮，并讨论了光加成的选择性。

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Photoaddition Reaction of Methyl 2,4-Dioxopentanoate with Chloroprene

The photoaddition reaction ofmethyl 2,4-dioxopentanoate with chloroprene gave two deMayo type adducts, methyl 3-(I-chlorovinyl)-2,6-dioxoheptanoate and methyl 3-chloro-2,6-dioxo-3-vinyl heptanoate. No regio isomers, 4-substituted esters, were observed. The photoadducts were converted to cyclohexenones and the selectivity of photoaddition was discussed.

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The reports of Institute of Advanced Material Study Kyushu University

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