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Ether group chelation chiral lithium amides

Several asymmetric 1,2-additions of various organolithium reagents (methyllithium, n-butyllithium, phenyllithium, lithioacetonitrile, lithium n-propylacetylide, and lithium (g) phenylacetylide) to aldehydes result in decent to excellent ee% (65-98%) when performed in the presence of a chiral lithium amido sulfide [e.g. (14)], 75 The chiral lithium amido sulfides invariably have exhibited higher levels of enantioselectivity compared to the structurally similar chiral lithium amido ethers and the chiral lithium amide without a chelating group. [Pg.289]

C. Chiral Lithium Amides with Chelating Ether Groups. 388... [Pg.381]

See other pages where Ether group chelation chiral lithium amides is mentioned: [Pg.589]    [Pg.600]    [Pg.603]    [Pg.600]    [Pg.597]   
See also in sourсe #XX -- [ Pg.388 , Pg.389 , Pg.394 ]



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Amide groups

Amides Chelation

Amides Chirality

Chelating groups

Chelation chiral lithium amides

Chelation ether groups

Chiral ether

Chiral group

Chiral lithium amides ether groups

Ether group

Lithium amide

Lithium ethers

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