Chiral imidate–ferrocenylphosphanes: synthesis and application as P,N-ligands in iridium(i)-catalyzed hydrogenation of unfunctionalized and poorly functionalized olefins
Efficient one-step synthesis of chiral bidentate oxazoline-alcohol ligands via a cyclic imidate ester rearrangement
摘要:
Various chiral bidentate oxazoline-alcohol ligands were obtained in a straightforward one-step synthesis via a cyclic imidate ester rearrangement. These chiral ligands were tested and compared in asymmetric diethylzinc additions to aldehydes resulting in selectivities of up to 87% ee. An interesting chirality switch was observed when a CPh2-tether instead of a CH2 was present, offering the opportunity for dual stereocontrol. (C) 2009 Elsevier Ltd. All rights reserved.
The present invention relates to a use of a cyclic imidate as a ligand for catalysis in which the ligand contains sub-structure (Y) as a minimal structural motive, wherein the carbon atoms and the nitrogen atom can be optionally substituted by a chemical substituent.
An efficient synthesis of a variety of 2,5-diaryloxazole derivatives via a rhodium-catalyzed annulation of triazoles and aldehydes is achieved. Various oxazole derivatives could be obtained in good to excellent yields. A concise synthesis of antimycobaterial natural products balsoxin and texamine has been achieved using this method.
This disclosure relates to compounds of formula (I), which are modulators of STING. Also disclosed are pharmaceutical compositions comprising compounds of formula (I) and methods of using compounds of formula (I) in the treatment or prevention of diseases ameliorated by the modulation of STING.
Highly diastereo- and enantioselective organocatalytic synthesis of new heterocyclic hybrids isoindolinone-imidate and isoindolinone-phthalide
作者:Antonia Di Mola、Francesco Scorzelli、Guglielmo Monaco、Laura Palombi、Antonio Massa
DOI:10.1039/c6ra14041f
日期:——
New heterocyclic hybrids were synthesized in an aldol initiated organocascade reaction of nucleophilic isoindolinones with 2-formyl benzonitriles (2-cyano benzaldehydes).