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(organic chemistry) In stereochemistry, on the same side of a reference plane; for example, the stereochemical outcome of an addition reaction where the new bonds are on the same side of the original pi bond is called syn addition.
- 《Journal of Organic Chemistry》 被引量: 143发表: 1996年 Reagent control in the aldol addition reaction of chiral boron enolates with chiral aldehydes. Total synthesis of (3S,4S)-Statine Boron enolates bearing menthone-derived chiral ligands are capable of fair to excellent diastereocontrol ...
Syn-addition in organic chemistry happens when certain factors do not allow one of the reactants to rotate as an intermediate. Before the reaction starts, the site where the addition occurs is locked in place due to its pi-bond holding the structure in place. The first step of an addition...
and insolubility of reactants and/or products. Enzyme immobilization permits reuse of the enzyme, which lowers cost. Stability, in a limited number of cases, can be improved by immobilization. The solubility problem can be addressed by using immobilized enzymes with organic solvent/water mixtures....
Jiang ZX,Qing FL.Regiose- -lective and stereoselective nucleophilic ring opening of trifluoromethylated cyclic sulfates: asymmetric synthesis of both enantiomers of syn- (3-Trifluoromethyl)isoserine. Journal of Organic Chemistry . 2004Jiang, Z.-X.; Qing, F.-L. Regioselective and Stereoselective ...
- 《Journal of Organic Chemistry》 被引量: 158发表: 1985年 Generation and interception of 1-OXA-2,3-Cyclohexadiene and 1,2,4-Cyclohexatriene The cycloadducts 6 and 7 of tricyclo[4.1.0.0 2-7 ]-hepta-3, 4-diene ( 5 ) with styrene and 1,3-butadiene rearrange to unusual products on ...
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Recombinant pig liver esterases are commonly used in organic chemistry for racemic resolutions and desymmetrizations in asymmetric syntheses of chiral alcohols or esters. discover more Hydroxynitrile lyases (NHL) Hydroxynitrile lyases catalyze the addition of HCN to aldehydes and ketones thereby forming α...
G Righi,G Rumboldt,C Bonini - 《Journal of Organic Chemistry》 被引量: 0发表: 1996年 Stereoselective Preparation of Syn α-Hydroxy-β-amino Ester Units via Regioselective Opening of α,β-Epoxy Esters: Enantioselective Synthesis of Taxol C-... A highly regio- and stereoselective sequence from...