ISSN:
0009-2940
Keywords:
Bis(triphenylmethoxy)hydroborane
;
Naphtho[2,3-d], -1,3,2-dioxaborolane
;
Naphtho[1,8-de]-1,3,2-dioxaborinane
;
Phenanthro[9,10-d]-1,3,2-dioxaborolane
;
Dibenzol[d,g]-1,3,2-dioxaborocine
;
Bis(diphenylmethoxy)borane
;
Tetrachlorobenzo-1,3,2-dioxaboraolen
;
Hydroborations
;
Boron
;
Catalysis
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
New and stable bis(organyloxy)boranes, 1,3,2-dioxaborolanes and 1,3,2-dixoaborinanes have been prepared (i) from the corresponding diol and BH3·THF and (ii) from 1,2-diketones and BH3·THF. They were characterized by spectroscopic techniques. The BH stretching frequency seems to be a measure of ring strain and Lewis acidity. The compounds have been qualitatively tested in the transition-metal-catalysed hydroboration of cyclopentene, and the dioxaborinane 11 proved to be superior to the 1,3,2-dioxaborolanes 9 and 18.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19971300310