Results 91 to 100 of about 415,153 (176)

Diastereoselective Synthesis of (–)-Bestatin, Epibestatin, Phebestin and (3S,4R)-4-Amino-3-hydroxy-5-phenylpentanoic Acid from an Aldehyde Derived from d-Phenylalanine

SynOpen, 2019
A convenient and efficient method for the synthesis of (–)-bestatin, epibestatin, phebestin, and (3S,4R)-4-amino-3-hydroxy-5-phenylpentanoic acid is reported. The key step is a proline-catalyzed α-hydroxylation of an aldehyde derived from d-phenylalanine,
Vipin Kumar Jain
doaj   +1 more source

Epoxides: Small Rings to Play with under Asymmetric Organocatalysis. [PDF]

ACS Org Inorg Au, 2022
Meninno S, Lattanzi A.
europepmc   +1 more source

Organocatalytic tandem Michael addition reactions: A powerful access to the enantioselective synthesis of functionalized chromenes, thiochromenes and 1,2-dihydroquinolines

Beilstein Journal of Organic Chemistry, 2012
Enantioselective organocatalysis has become a field of central importance within asymmetric chemical synthesis and appears to be efficient approach toward the construction of complex chiral molecules from simple achiral materials in one-pot ...
Chittaranjan Bhanja, Satyaban Jena, Sabita Nayak, Seetaram Mohapatra   +3 more
doaj   +1 more source

Asymmetric Organocatalysis in the Remote (3 + 2)-Cycloaddition to 4-(Alk-1-en-1-yl)-3-cyanocoumarins. [PDF]

Org Lett, 2023
Łukasik B, Romaniszyn M, Kłoszewski N, Albrecht Ł.   +3 more
europepmc   +1 more source

(Thio)urea-mediated synthesis of functionalized six-membered rings with multiple chiral centers

Beilstein Journal of Organic Chemistry, 2016
Organocatalysis, now running its second decade of life, is being considered one of the main tools a synthetic chemist has to perform asymmetric catalysis. In this review the synthesis of six-membered rings, that contain multiple chiral centers, either by
Giorgos Koutoulogenis, Nikolaos Kaplaneris, Christoforos G. Kokotos   +2 more
doaj   +1 more source

Green Chemistry Meets Asymmetric Organocatalysis: A Critical Overview on Catalysts Synthesis. [PDF]

ChemSusChem, 2021
Antenucci A, Dughera S, Renzi P.
europepmc   +1 more source

New Concepts for Organocatalysis

, 2008
Organocatalysis, catalysis with low-molecular weight catalysts in which a metal is not part of the catalytic principle or the reaction substrate, can be as efficient and selective as metal- or biocatalysis.
List, B., B. List, Pan, S., S. C. Pan
core   +1 more source

Chiral proline-substituted porous organic cages in asymmetric organocatalysis. [PDF]

Chem Sci, 2022
Xu N, Su K, El-Sayed EM, Ju Z, Yuan D.
europepmc   +1 more source

Synthesis of the Southern Tripeptide (C₁–N₁₂) of Sanglifehrins Using Asymmetric Organocatalysis

, 2014
The tripeptide southern region of the novel cyclophilin binding natural product macrolides, namely sanglifehrins, is synthesized involving asymmetric organocatalysis as chirality-inducing step.
Laghuvarapu Radhika (626159), Srivari Chandrasekhar (626160)   +1 more
core   +1 more source

Asymmetric Counteranion-Directed Lewis Acid Organocatalysis.

, 2014
This work describes studies on asymmetric counteranion-directed Lewis acid organocatalysis. In the first part, the development of a catalytic asymmetric Hosomi–Sakurai reaction using BINOL-derived disulfonimides is described. Good to excellent yields and
van Gemmeren, M.
core