Hydrophobic Effects. Opinions and Facts

The term hydrophobic interactions denotes the tendency of relatively apolar molecules to stick together in aqueous solution. These interactions are of impo...

W Blokzijl，JBFN Engberts - 《Angewandte Chemie International Edition in English》

Steroselective organic reactions in water

An overview is given on the key discoveries in the water-based organic synthesis as well as some of the most promising new methods of achieving stereocontrol in organic reactions developed in the last 5 years. In this period, many cataly...

UM Lindström

Enantioselective Addition of Hydrogen Cyanide to Imines Catalyzed by a Chiral (Salen)Al(III) Complex

ChemInform is a weeklying Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInformof ...

MS Sigman，EN Jacobsen - 《Cheminform》

Aqueous aldol catalysis by a nicotine metabolite.

Nornicotine, an endogenous tobacco alkaloid and minor nicotine metabolite, can catalyze aldol reactions at physiological pH. Catalysis appears to be due to a covalent enamine mechanism, an unprecedented reaction with small organic molecu...

TJ Dickerson，KD Janda - 《Journal of the American Chemical Society》

Acceleration of a dipolar Claisen rearrangement by Hydrogen bonding to a soluble diaryl^urea

The Claisen rearrangement of 6-methoxy allyl vinyl ether is catalyzed by a soluble diaryl urea, and evidence is presented that the urea stabilizes a dipola...

DP Curran，LH Kuo - 《Tetrahedron Letters》

Green Lewis acid catalysis in organic synthesis

New types of Lewis acids as water-stable catalysts have been developed. Metal salts such as rare earth metal triflates can be used in carbon_carbon bond-fo...

SUKK Manabe - 《Pure & Applied Chemistry》

Diels-Alder reactions in water: Enforced hydrophobic interaction and hydrogen bonding

Second-order rate constants have been measured for the Diels-Alder (DA) reactions of cyclopentadiene with dienophiles of varying hydrophobicity and hydroge...

Engberts，BFN Jan - 《Pure & Applied Chemistry》

Modelling of solvent effects on the Diels–Alder reaction

No abstract available

C Cativiela，JI Garcia，JA Mayoral，... - 《Chemical Society Reviews》

Experimental and theoretical study of the influence of the solvent on asymmetric diels—alder reactions

Rate, endo/exo and diastereofacial selectivities of the Diels–Alder reaction between cyclopentadiene and (—)-menthyl acrylate were measured in a series of organic solvents and organic–aqueous mixtures. Regression analyses show that a ...

C Cativiela，JI Garcia，JA Mayoral，... - 《Journal of Physical Organic Chemistry》

A concise synthesis of (+)-muscarine

+)-Muscarine was synthesized from S-()-ethyl lactate in five steps with the application of a zinc-mediated allylation reaction in aqueous media. Reversal o...

TH Chan，CJ Li - 《Canadian Journal of Chemistry》