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Ligand-mediated addition of organometallic reagents to azomethine functions

โœ Scribed by Denmark, Scott E.; Nicaise, Olivier J.-C.

Book ID
120929732
Publisher
Royal Society of Chemistry
Year
1996
Tongue
English
Weight
888 KB
Volume
9
Category
Article
ISSN
1359-7345

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In the presence of chiral thiourethane ligands [Cu(MeCN)4]BF4 forms active catalysts for the conjugate addition of MeMgBr, ZnEt2 and AIR3 (R = Me, Et) to non-3-en-2-one, hept-3-en-2-one, and 5-methylhex-3-en-2-one. Enantioselectivities of up to 51% are realised for these difficult substrates; for cy