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Enantioselective Arylations Catalyzed by Carbohydrate-Based Chiral Amino Alcohols
(WILEY-BLACKWELL, 2010)
The application of carbohydrate-derived amino alcohols in the asymmetric arylation of aldehydes by using arylboronic acids as the source of transferable aryl groups is described. The best ligand is derived from the readily ...
Introduction of allyi and prenyl side-chains into aromatic systems by suzuki cross-coupling reactions
(Wiley VCH Verlag, 2009-08)
This paper reports some studies aiming at the developement of a general protocol useful for the synthesis of allyl- and prenylaromatic compounds. The first part deals with, the preparation of boron reagents like arylboronic ...
Synthesis of diaryl selenides using electrophilic selenium species and nucleophilic boron reagents in ionic liquids
(ROYAL SOC CHEMISTRY, 2011)
We described herein the use of imidazolium ionic liquids [bmim]PF(6) and [bmim]BF(4) in the selective, metal and catalyst-free synthesis of unsymmetrical diaryl selenides by electrophilic substitution in arylboron reagents ...
Sustainable oxidations with air mediated by gallic acid: Potential applicability in the reutilization of grape pomace
(Royal Society of Chemistry, 2016-03-11)
Gallic acid converts atmospheric oxygen into hydrogen peroxide, which is able to oxidize arylboronic acids as a proof of concept of sustainable oxidations. Moreover, tannic acid and grape pomace extract are also able to ...
Phosphine-free Suzuki cross-coupling reaction using an efficient and reusable Pd catalyst in an aqueous medium under microwave irradia
(2015-06-17)
We report here an improved, highly efficient, and general method for the ligand-free Suzuki cross-coupling reaction to the synthesis of biaryls, bipyridyls, thienylpyridine, and allylphenols. Microwave irradiation of ...
Diastereoselective Addition of Arylzinc Reagents to Sugar Aldehydes
(AMER CHEMICAL SOCWASHINGTON, 2012)
The diastereoselective arylation of sugar-derived aldehydes is described. The arylating reagents are generated in situ by a boron-to-zinc exchange reaction of arylboronic acids with Et2Zn to generate arylethylzinc reagents. ...