Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Christoph Bihlmayer"'
Publikováno v:
Zeitschrift für Naturforschung B. 64:399-402
Trimethyl- and triethyl(propyn-1-yl)tin react with 9-borabicyclo[3.3.1.]nonane (9-BBN) mainly by exchange of the propynyl group against hydrogen, accompanied by numerous side reaction. This is in contrast to the findings for other alkynyltin compound
Publikováno v:
Chemische Berichte. 116:3182-3191
Die Spaltung der SnC-Bindung in Trialkylalkinylstannanen 2 mit Triethylboran (1a) verlauft uber eine Alkinylborat-Zwischenstufe A stereoselektiv zu Alken-Derivaten 3 mit Boryl- und Stannylgruppe in cis-Stellung. Die Reaktion dieser Alkene mit einem w
Autor:
Christoph Bihlmayer, Bernd Wrackmeyer
Publikováno v:
Zeitschrift für Naturforschung B. 36:1265-1269
Organoboration, 9-Borabicyclo[3.3.1]nonanes, NMR Spectra New alkene derivatives are obtained from the reaction between 9-ethyl-borabicyclo-[3.3.1]nonane and alkynyl stannanes under kinetic or thermodynamic control. NMR evidence for a borate type inte
Autor:
Christoph Bihlmayer, Bernd Wrackmeyer
Publikováno v:
Journal of Organometallic Chemistry. 266:33-36
The reaction between 1,4-pentadiyne and diethylaminotrimethylstannane leads predominantly to ( E )-2-diethylamino-4-trimethylstannyl-2,4-pentaenyne (with either a 1/1 or 1/2 mol ratio of 1,4-pentadiyne and diethylaminotrimethylstannane). With 1/2 sto
Publikováno v:
Journal of Organometallic Chemistry. 322:25-32
Tricyclic heterocycles ( 8 ) containing a stannacyclopentadiene unit are obtained as the major products (ρ 80%) from the reaction between diethynyldimethylstannane and B -alkyl-9-borabicyclo[3.3.1]nonanes ( 2 ). By comparison with the analogous reac
Publikováno v:
Zeitschrift für Naturforschung B. 42:715-719
1-Propynylstannane (1) reacts with B-ethyl-9-borabicyclo[3.3.1]nonane (10) (ratio 2:1) to giva a new butadiene derivative (11). Attempts to oligomerize 1 by organoboration with trimethyl-borane (13) (ratio 2:1) lead to a hexatriene derivative (14). A
Autor:
Bernd Wrackmeyer, Christoph Bihlmayer
Publikováno v:
Chemischer Informationsdienst. 13
The reaction of 9-borabicyclo[3.3.1]nonane with alkynyltrimethylstannanes (Me3Sn–CC–R) yields a new alkene (R = But) and new allenes (R = Me3Si or Me3Sn); the formation of both types of compound is not consistent with hydroboration but involves e
Autor:
Christoph Bihlmayer, Bernd Wrackmeyer
Publikováno v:
Journal of the Chemical Society, Chemical Communications. :1093
The reaction of 9-borabicyclo[3.3.1]nonane with alkynyltrimethylstannanes (Me3Sn–CC–R) yields a new alkene (R = But) and new allenes (R = Me3Si or Me3Sn); the formation of both types of compound is not consistent with hydroboration but involves e