721884-82-8Relevant articles and documents
Asymmetric Phase-Transfer Catalytic aza-Michael Addition to Cyclic Enone: Highly Enantioselective and Diastereoselective Synthesis of Cyclic 1,3-Aminoalcohols
Lee, Jaeyong,Ban, Jeong Woo,Kim, Jeongseok,Yang, Sehun,Lee, Geumwoo,Dhorma, Lama Prema,Kim, Mi-Hyun,Ha, Min Woo,Hong, Suckchang,Park, Hyeung-Geun
, p. 1647 - 1651 (2022/03/03)
The highly enantioselective aza-Michael reaction of tert-butyl β-naphthylmethoxycarbamate to cyclic enones has been accomplished by using a new cinchona alkaloid derived C(9)-urea ammonium catalyst under phase-transfer catalysis conditions with up to 98% ee at 0 °C. The resulting aza-Michael adducts can be converted to versatile intermediates by selective deprotection and the cyclic 1,3-aminoalcohols by diastereoselective reduction with up to 32:1, which have been widely used as important pharmacophores in pharmaceutical development.
Resolution of trans-3-aminocyclohexanol
Bernardelli, Patrick,Bladon, Michael,Lorthiois, Edwige,Manage, Ajith C.,Vergne, Fabrice,Wrigglesworth, Roger
, p. 1451 - 1455 (2007/10/03)
(R,R)- and (S,S)-trans-3-Aminocyclohexanol were prepared via an enzymatic resolution of (±)-trans-1-acetoxy-3-benzylamido-cyclohexane with >95% enantiomeric excess.