ENANTIOSELECTIVE ADDITION OF DIETHYLZINC TO ARYLALDEHYDES CATALYZED BY CHIRAL COBALT(II) AND PALLADIUM(II) COMPLEXES
نویسندگان
چکیده
منابع مشابه
Enantioselective Addition of Diethylzinc to Aldehydes Catalyzed by a Titanate Complex with a Chiral Tetradentate Ligand.
The addition of dialkylzincs to aldehydes is one of the most widely studied carbon-carbon bond-forming reactions. Many systems reported to date use amino alcohols as ligands and zinc complexes as catalysts.1 The asymmetric version of this alkylation reaction can also be catalyzed by chiral titanate complexes2-4 (e.g., TADDOLs2 and chiral sulfonamides3). We have recently studied a titanate compl...
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Rhodium-catalyzed asymmetric addition of cyclopropylboronic acids to electron-deficient alkenes such as alkenylsulfones, enones, enoates, and nitroalkenes proceeded to give high yields of the corresponding 1,4-addition products with high enantioselectivity.
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ژورنال
عنوان ژورنال: Chemistry Letters
سال: 1983
ISSN: 0366-7022,1348-0715
DOI: 10.1246/cl.1983.841