ISSN:
0170-2041
Keywords:
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Boron Compounds, L1). - Diethyl(substituted-vinylamino)boranes from Triethylborane and N-AlkylketiminesN-Alkylketimines 1 react with activated triethylborane above 70°C with liberation of 1 mol ethane to yield 81-97% diethyl(substit.-vinylamino)boranes 2 [H5C2)2BN(R1)-C(CH2R2) = CHR3]. (Z)-2b2 [R1 = CH(CH3)2, R2 = H, R3 = CH3] can be enriched to more than 80% of 2b mixture by addition of 2b1 [R1 = CH(CH3)2, R2 = CH3, R3 = H] and (E)-2b2 to benzaldehyde.
Notes:
Aus N-Alkylketiminen 1 erhält man mit aktiviertem Triethylboran oberhalb 70°C unter Abspaltung von 1 mol Ethan regio- sowie stereoisomere (Z/E)-Diethyl(substit.-vinylamino)borane 2 [(H5C2)2BN(R1)-C(CH2R2) = CHR3] in 81- bis 97proz. Ausbeute. (Z)-2b2 [R1 = CH(CH3)2, R2 = H, R3 = CH3] läβt sich aus dem 2b-Isomerengemisch durch Addition von 2b1 [R1 = CH(CH3)2, R2 = CH3, R3 = H] und (E)- 2b2 an Benzaldehyd auf über 80% anreichern.
Additional Material:
11 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jlac.198119810419
