Synthesis of (E,E)- and (Z,Z)-1,5-Cycloalkadienes by Means of the Electrochemical Cyclization of Allylic 1,ω-Dibromides

Synthesis of (E,E)- and (Z,Z)-1,5-Cycloalkadienes by Means of the Electrochemical Cyclization of Allylic 1,ω-Dibromides
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烯丙基 1,ω-二溴化物电化学环化合成 (E,E)- 和 (Z,Z)-1,5-环二烯

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发表时间:
1987
期刊:
影响因子:
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通讯作者:
H. Suginome
H. Suginome
中科院分区:
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文献类型:
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作者:
M. Tokuda*;Kuniaki Satoh;H. Suginome

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在四氢呋喃中电解(E,E)-1,n-二溴-2,(n-2)-二烯烃(n=12,14)得到相应的12或14元(E,E)-1,5-环二烯烃,尽管产率较低,以及(E)-4-乙烯基环烯烃和异构体二烯烃。(Z,Z)-1,n-二溴-2,(n-2)-二烯烃(n=10,12,14)的类似电解以11 - 13%的产率得到相应的10,12或14元(Z,Z)-1,5-环二烯烃,伴随着(Z)-4-乙烯基环烯烃和异构体二烯烃的形成。
Electrolysis of (E,E)-1,n-dibromo-2,(n-2)-alkadienes (n=12, 14) in tetrahydrofuran gave the corresponding twelve or fourteen-membered (E,E)-1,5-cycloalkadienes, albeit in low yields, together with (E)-4-vinylcycloalkenes and isomeric alkadienes. Similar electrolysis of (Z,Z)-1,n-dibromo-2,(n-2)-alkadienes (n=10, 12, 14) gave the corresponding ten, twelve, or fourteen-membered (Z,Z)-1,5-cycloalkadienes in 11 to 13% yields, with the accompanying formation of (Z)-4-vinylcycloalkenes and isomeric alkadienes.