Results 41 to 50 of about 23,776 (268)
Beilstein Journal of Organic Chemistry, 2014 The diastereoselective oxazoline-directed lithiation of calix[4]arenes is reported with diastereoselective ratios of greater than 100:1 in some instances.
Simon A. Herbert +3 more
doaj +1 more source
Enantio- and Diastereoselective Suzuki-Miyaura Coupling with Racemic Bicycles
, 2019 Herein we describe a rhodium-catalyzed enantio- and diastereoselective Suzuki-Miyaura cross-coupling between racemic fused bicyclic allylic chlorides and boronic acids.
Friedrich Wieland, Goetzke +2 more
core +1 more source
Advanced Science, EarlyView.We report a new thiolate‐reactive α,α‐gem‐dibromo lactam warhead that activates transcription factor Nrf2 and demonstrates anti‐inflammatory activities, which have implications in cancer, neurodegeneration, and cardiovascular diseases. RNA‐seq illuminated detailed transcriptional profiles, and chemical reactions with cysteine‐containing compounds ...
Beau R. Brummel +16 more
wiley +1 more source
Diastereoselective Synthesis of Protected 4-epi-Vancosamine from (S)-N-Boc-N,O-isopropylidene-alfa-methylserinal [PDF]
, 2003 An efficient diastereoselective synthesis of methyl N,O-dibenzoyl-L-4-epi-vancosamine is described. The key step involves Sharpless asymmetric dihydroxylation of a Z olefin derived from (S)-N-Boc-N,O-isopropylidene-α-methylserinal.
Corzana, F. [0000-0001-5597-8127] +5 more
core +1 more source
A Brønsted base-promoted diastereoselective dimerization of azlactones
Beilstein Journal of Organic Chemistry, 2017 A novel Brønsted base system for the diastereoselective dimerization of azlactones using trichloroacetate salts and acetonitrile has been developed. Desired products were obtained in good yields (60–93%) and with up to >19:1 dr after one hour of reaction.
Danielle L. J. Pinheiro +5 more
doaj +1 more source
SynOpen, 2020 A diastereoselective approach to the synthesis of berkeleylactone F is presented. The synthetic strategy is initiated with commercially available (R)-glycidol, 1,6-heptadiyne, and (R)-(+)-methyl lactate.
Srijana Subba +2 more
doaj +1 more source
cis-Diastereoselective synthesis of chroman-fused tetralins as B-ring-modified analogues of brazilin
Beilstein Journal of Organic Chemistry, 2016 We have synthesized a series of cis-6a,7,8,12b-tetrahydro-6H-naphtho[2,1-c]chromen-6a-ols as B-ring-modified analogues of (±)-brazilin. A completely regio- and cis-diastereoselective intramolecular Friedel–Crafts epoxy–arene cyclization of 1-tetralone ...
Dimpee Gogoi +4 more
doaj +1 more source
Diastereoselective Intramolecular Cyanoamidation with Alkenes [PDF]
European Journal of Organic Chemistry, 2016 Reported herein is a diastereoselective intramolecular alkene cyanoamidation, wherein high d.r. values are imparted by chiral directing groups. Lactams with an α‐all‐carbon quaternary stereocenter are readily synthesized, which may enable access to structures frequently found in biologically active molecules and natural products.
Ashley M. Dreis +5 more
openaire +2 more sources
Diastereoselective Enolsilane Coupling Reactions
, 2016 Diastereoselective Enolsilane Coupling ...
Scott J. Miller (1308798) +1 more
core +1 more source
Diastereoselective Cyclopentane Construction
, 2016 Diastereoselective Cyclopentane ...
Douglass F. Taber (1568878) +2 more
core +1 more source