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Synthesis of new chiral phosphorous- and nitrogen-containing ligands from resin acids

✍ Scribed by Tatiana B. Khlebnikova; Nikolay N. Karpyshev; Olga V. Tolstikova; Alexander G. Tolstikov

Book ID: 102075785
Publisher: John Wiley and Sons
Year: 2004
Tongue: English
Weight: 262 KB
Volume: 16
Category: Article
ISSN: 0899-0042
DOI: 10.1002/chir.20045

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✦ Synopsis

Starting from the phytogenic diterpenes, chiral phosphine, urea, and thiourea derivatives were synthesized. Using these new chiral ligands, Rh( I ) and Ru(II) complexes were prepared and used as catalysts for the catalytic asymmetric hydrogenation of unsaturated carboxylic acids and asymmetric hydrogen-transfer reduction of carbonyl compounds. Although the enantiopurity of the products obtained was not high, it was demonstrated that chiral ligands derived from diterpenes could be used for asymmetric reduction. Chirality 16:S40 -S50, 2004.

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