241820-33-7Relevant academic research and scientific papers
Spiro-Bicyclic Bisborane Catalysts for Metal-Free Chemoselective and Enantioselective Hydrogenation of Quinolines
Li, Xiang,Tian, Jun-Jie,Liu, Ning,Tu, Xian-Shuang,Zeng, Ning-Ning,Wang, Xiao-Chen
supporting information, p. 4664 - 4668 (2019/03/26)
A new series of spiro-bicyclic bisborane catalysts has been prepared by means of hydroboration reactions of C2-symmetric spiro-bicyclic dienes with HB(C6F5)2 and HB(p-C6F4H)2. When used for hydrogenation of quinolines, these catalysts give excellent yields and enantiomeric excesses, and show turnover numbers of up to 460. The most attractive feature of these metal-free hydrogenation reactions was the broad functional-group tolerance, making this method complementary to existing methods for quinoline hydrogenation.
Palladium-mediated carbosubstitutions in spiranes
Falck-Pedersen, Mette Lene,Romming, Christian,Undheim, Kjell
, p. 8525 - 8538 (2007/10/03)
Carbosubstitutions in spirene triflates can be effected by Pd-catalyzed couplings with stannylated or zincated arenes. Differential carbosubstitution resulted from stepwise triflation and coupling in spiro[4,4]nonane-1,6- dione. Catalytic hydrogenation of
