Results 101 to 110 of about 63,316 (301)
Structure and stereochemistry of jatamansone
, 1961 On the basis of degradation studies, jatamansone is shown to have the structure and stereochemistry depicted in formula I, representing a new fundamental ...
Govindachari, T. R. +3 more
core +1 more source
Cationic Permethylated Cyclodextrins Capable of Self‐Assembling Into Linear Nanostructures in Water
Chemistry – A European Journal, EarlyView.A quaternary ammonium bridge equipped with a lipophilic substituent in permethylated cyclodextrins suppresses undesired supramolecular interactions and promotes controlled, directional head‐to‐tail self‐assembly into well‐defined linear nanostructures.
Maxime Kolb +4 more
wiley +1 more source
Beilstein Journal of Organic ChemistrySelective fluorination of the pyrrolidine ring in proline motifs has been found to induce significant conformational changes that impact the structure and biological roles of modified peptides and proteins.
Ana Flávia Candida Silva +2 more
doaj +1 more source
Stereochemistry of Sagittamide A: Prediction and Confirmation
, 2016 The C5−C10 relative stereochemistry of sagittamide A was predicted, with the use of the 3JH,H profiles assembled from the spin-coupling constants reported in the literature.
Hirofumi Seike (2263234) +2 more
core +1 more source
A Low‐Symmetry FeII Tetrahedron From a Flexible Tritopic Ligand
Chemistry – A European Journal, EarlyView.A highly symmetric and flexible tris‐bidentate tritopic ligand forms an S4 meso homoleptic face‐capped FeII tetrahedron near‐quantitatively in acetonitrile. The addition of nitromethane solvent causes partial isomerization of this meso cage to the racemic homochiral tetrahedron, with the complexity of the system being moderated through solvophobic ...
Rosemary J. Goodwin +5 more
wiley +1 more source
Stereoselective cyclization reactions through palladium and silver catalysis
, 2010 The Gordon Research Conference on Stereochemistry, Salve Regina University, Newport, R.I., 1-6 August ...
Yang, D
core
Stereochemistry and synthesis of bursattelin from chloramphenicol
, 1990 The 1R,2R stereochemistry for (-)-bursateilin has been established by synthesis from chloramphenicol D-base. -------------------------------------------------------------------------------
Giuseppe Strazzullo +4 more
core +1 more source
Chemistry – A European Journal, EarlyView.Aminocatalytically generated isobenzofulvenes and 3‐oxidopyridinium betaines act as ambiphilic reaction partners in orbital‐symmetry‐allowed [10+4] cycloadditions or formally symmetry‐forbidden concerted thermal [10+6] cycloadditions. The reaction furnishes three cycloadducts: one [10+4] cycloadduct and two regioisomeric [10+6] cycloadducts.
Jonas Faghtmann +7 more
wiley +1 more source
Beilstein Journal of Organic ChemistryOxindoles are an important class of compounds with significant biological activities. Spirocyclic derivatives are present in a variety of natural products.
Beth L. Ritchie +2 more
doaj +1 more source