6530-09-2Relevant articles and documents
Kinetic Self-Sorting of Dynamic Covalent Catalysts with Systemic Feedback Regulation
Schaufelberger, Fredrik,Ramstr?m, Olof
, p. 7836 - 7839 (2016/07/07)
Constructing small molecule systems that mimic the functionality exhibited in biological reaction networks is a key objective of systems chemistry. Herein, we report the development of a dynamic catalytic system where the catalyst activity is modulated through a dynamic covalent bond. By connecting a thermodynamically controlled rearrangement process to resolution under kinetic control, the catalyst system underwent kinetic self-sorting, resulting in amplification of a more reactive catalyst while establishing a catalytic feedback mechanism. The dynamic catalyst system furthermore responded to catalytic events by self-perturbation to regulate its own activity, which in the case of upregulation gave rise to systemic autocatalytic behavior.
Improved preparation of (R) and (S)-3-aminoquinuclidine dihydrochloride
Kowalczyk, Bruce A.,Rohloff, John C.,Dvorak, Charles A.,Gardner, John O.
, p. 2009 - 2015 (2007/10/03)
An improved procedure for the synthesis of either (R) or (S)-3-aminoquinuclidine was developed. Key intermediate imine 2 was made in a one pot process using lithium oxide as the base and molecular sieves.
Preparation of S-(-)- and R-(+)-N-(quinuclidinyl-3)-amide
-
, (2008/06/13)
Optical active forms of the carboxylic acid amines of 3-aminoquinuclidine of formula (I), and the preparation thereof. These can be hydrolysed to the optical active forms of 3-aminoquinuclidine.