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Highly Enantioselective Cyanoformylation of Aldehydes Catalyzed by a Mononuclear Salen-Ti(OiPr)4 Complex Produced in situ.

✍ Scribed by Shi-Kui Chen; Dan Peng; Hui Zhou; Li-Wei Wang; Fu-Xue Chen; Xiao-Ming Feng

Publisher: John Wiley and Sons
Year: 2007
Weight: 23 KB
Volume: 38
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.200719085

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## Abstract A new catalytic system, generated from the readily available and inexpensive β‐sulfonamide alcohol L\*, Ti(O^i^Pr)~4~, Et~2~Zn, and tertiary amine base (R~3~N), effectively catalyzes the enantioselective addition of various terminal alkynes including some quite challenging alkynes to al