Synthesis of a new analogue of BINOL based on a homodimer of substituted 1-hydroxypyrazole

DOI: 10.1039/b010126p

Source and publish data:

Journal of the Chemical Society. Perkin Transactions 1 (2001) p. 1566 - 1568 (2001)

Update date:2022-08-04

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Authors:

Rist Rist

Begtrup Begtrup

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Article abstract of DOI:10.1039/b010126p

A new potential ligand for asymmetric synthesis, based on a homodimer of 1-hydroxypyrazole, has been synthesized. The chemistry involved lithiation, iodine-magnesium exchange, magnesium-zinc exchange, and cross-coupling reactions. In a preliminary study, the chemical activity of the ligand as a titanium(IV) complex was investigated in the addition of diethyl zinc to benzaldehyde. Its activity was comparable to the corresponding BINOL-Ti(IV) complex.

Full text of DOI:10.1039/b010126p

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Product name:1,1'-Bis(benzyloxy)-5,5'-bipyrazolyl

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