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- W2002913293 abstract "The enantiopure disulfonamides 7a−c have been prepared from the C2-symmetric diketone 2, a starting material conveniently accessible from the “dimerization” of (+)-verbenone. These ligands, when treated with titanium isopropoxide and diethylzinc, function as catalysts for the enantioselective alkylation of aldehydes. Stereoselectivity levels ranging from 72 to 98% ee are seen depending on the structural characteristics of the aldehyde. In all cases, the absolute configuration of the carbinol product is R. A working mechanistic model is advanced for the purpose of rationalizing the high levels and direction of asymmetric induction exhibited by these VERDI catalysts." @default.
- W2002913293 created "2016-06-24" @default.
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- W2002913293 date "2010-06-10" @default.
- W2002913293 modified "2023-09-27" @default.
- W2002913293 title "ChemInform Abstract: Synthesis of Enantiopure C2-Symmetric VERDI Disulfonamides and Their Application to the Catalytic Enantioselective Addition of Diethylzinc to Aromatic and Aliphatic Aldehydes." @default.
- W2002913293 cites W2951501588 @default.
- W2002913293 doi "https://doi.org/10.1002/chin.200008030" @default.
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