15429-16-0Relevant articles and documents
Metal-Free Carbonylation Route to a Reactive Borataepoxide System
Wang, Tongdao,Kehr, Gerald,Daniliuc, Constantin G.,Erker, Gerhard
, p. 1040 - 1049 (2018)
Hydroboration of N-allyl-cis-2,6-dimethylpiperidine with HB(C6F5)2 gave the trimethylene-bridged frustrated N/B Lewis pair 7. It featured a trans-2,6-dimethyl substitution pattern at the piperidine unit which indicated preceding equilibration with its iminium cation/hydridoborate isomer 6 by means of an internal hydride transfer. In situ generated compound 6 is essential for the reaction with CO/HB(C6F5)2 to give the borataepoxide product 12 at the [N]-(CH2)3-[B] framework. The borataepoxide 12 reacts rapidly with CO2, cleaves the acidic C-H bond of a terminal alkyne, splits dihydrogen, and reacts with nitriles and benzaldehyde. Most products were characterized by X-ray diffraction.
New approach for induction of alkyl moiety to aliphatic amines by NaBH(OAc)3 with carboxylic acid
Tamura, Satoru,Sugawara, Aoi,Sato, Erika,Sato, Fuka,Sato, Keigo,Kawano, Tomikazu
supporting information, (2020/04/15)
We had found the novel N-alkylation method, which utilizes carboxylic acids as alkyl sources with sodium triacetoxyborohydride [NaBH(OAc)3]. Our methodology had been revealed to have some advantages over the reported similar procedures. Through
Remarkable co-catalyst effects on the enantioselective hydrogenation of unfunctionalised enamines: Both enantiomers of product from the same enantiomer of catalyst
Tin, Sergey,Fanjul, Tamara,Clarke, Matthew L.
, p. 677 - 680 (2016/02/18)
During studies on the enantioselective hydrogenation of unfunctionalised enamines, a very surprising switch in enantiopreference was observed; [((R,R)-Et-DUPHOS)-Rh(COD)]BF4 hydrogenates an enamine to give (R)-amine with up to 73% ee, but when
