TWOFOLD BORYLATION OF BENZENE-DERIVATIVES WITH (DIISOALKYLAMINO)BORADIYL UNITS

被引:10
|
作者
MELLER, A
BOKER, C
SEEBOLD, U
BROMM, D
MARINGGELE, W
HEINE, A
HERBSTIRMER, R
POHL, E
STALKE, D
NOLTEMEYER, M
SHELDRICK, GM
机构
[1] Institut für Anorganische Chemie, Universität Göttingen, Göttingen, W-3400
关键词
(DIISOALKYLAMINO)BORADIYLBENZENE DERIVATIVES; BOROLO[3,2-B]BOROLE; 2,8-DIBORABICYCLO[3.2.1]OCTA-3,6-DIENE; BORYLATION OF BENZENE DERIVATIVES;
D O I
10.1002/cber.19911240904
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The reaction of subvalent boron species generated by the defluorination of difluoro(dioganylamino)borane with Na/K alloy in the presence of 1,4-disubstituted benzene derivatives leads to products which contain two (diorganylamino)boradiyl units and two remaining double bonds which are located on the substituted C atoms. Compounds 5 to 8 exhibit structures based on a 2,8-diborabicyclo[3.2.1]octa-3,6-diene skeleton while 9 shows a skeleton with a 1,3a,4,6a-tetrahydroborolo[3,2-b]borole structure. The latter structure corresponds to that of 1 obtained in the same reaction with benzene. The compounds are characterized by elemental analyses and spectroscopically [MS, NMR (H-1, B-11, C-13, N-15, F-19, Si-29)]. X-ray structure analyses are presented for 1, 6, 7, 8, and 9.
引用
收藏
页码:1907 / 1912
页数:6
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