BORIRANES - STRUCTURES AND THERMAL RING OPENINGS

被引：30

作者：

WILLERHAUSEN, P

SCHMIDTLUKASCH, G

KYBART, C

ALLWOHN, J

MASSA, W

MCKEE, ML

SCHLEYER, PV

BERNDT, A

机构：

[1] UNIV MARBURG,FACHBEREICH CHEM,HANS MEERWEIN STR,W-3550 MARBURG,GERMANY

[2] UNIV ERLANGEN NURNBERG,INST ORGAN CHEM,W-8520 ERLANGEN,GERMANY

[3] AUBURN UNIV,DEPT CHEM,AUBURN,AL 36849

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH | 1992年 / 31卷 / 10期

关键词：

D O I：

10.1002/anie.199213841

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An of the three bonds in the C2B ring of C-borylated boriranes can be cleaved thermally with formation of C-borylmethyleneboranes 1, diboratetrahydronaphthalenes, or (after reaction of the appropriate boriranes with ethyl vinyl ether) dihydroboroles depending on the substituents. The electrocyclic exothermic ring-opening known for the transformation of cyclopropenylium ions into allyl cations has not been observed previously for the isoelectronic boriranes; according to calculations the ring-opening is endothermic. R = SiMe3.

引用

页码：1384 / 1386

页数：3

共 25 条

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ALLWOHN J, 1991, THESIS MARBURG

[2]

ALLWOHN J, 1988, THESIS MARBURG

[3]

[Anonymous], 1987, CHEM CYCLOPROPYL GRO

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