ISSN:
0075-4617
Keywords:
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Boron Compounds XXVIII1). - 1,2-(2,2′-Biphenylylene)diboranes(6)1,2-(2,2′-Biphenylylene)-1,2-diethyldiborane(6) (1) is obtained in ca. 80% yield from (2-biphenylyl)diethylborane and ethyldiborane(6)** ). 1,2-(2,2′-Biphenylylene)diborane(6) (2) and 1,2:1,2-bis(2,2′-biphenylylene)diborane(6) ( 3) are prepared in high yields by reaction of 1 with diborane and diethyl ether-trifluoroborane, respectively. Reaction of 1 with tertbutyl alcohol yields the colourless 9-tert-butyloxy-9-borafluorene and trichloroborane reacts with 1 to form the yellow 9-chloro-9-borafluorene.
Notes:
1,2-Diäthyl-1,2-(2,2′-biphenylylen)diboran(6) (1) erhält man aus Diäthyl(2-biphenylyl)boran und Äthyldiboran(6)**) in ca. 80proz. Ausbeute. Aus 1 lassen sich mit Diboran 1,2-(2,2′-Biphenylylen)diboran(6) (2) und mit Diäthyläther-trifluorboran 1,2: 1,2-Bis(2,2′-biphenylylen)-diboran(6) (3) in guten Ausbeuten gewinnen. Mit tert.-Butylalkohol reagiert 1 zum farblosen 9-tert.-Butoxy-9-borafluoren und mit Trichlorboran zum gelben 9-Chlor-9-borafluoren.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jlac.197419741114
