Diastereoselective and branched-aldehyde-selective tandem hydroformylation-hemiaminal formation : synthesis of functionalized piperidines and amino-alcohols
Abstract
Starting from readily available allylglycine, a tandem hydroformylation–hemiaminal formation reaction has been developed for the synthesis of chiral functionalized piperidines, with very good diastereoselectivity and branched regioselectivity using Rh/(S,S,S)-BOBPHOS catalysts. Tandem hydroformylation–hemiacetal formation also proceeds with good diastereoselectivity (88:12), with the hemiacetal product being hydrogenated with retention of stereochemistry to give a chiral intermediate used in the synthesis of the new antibiotic nemonoxacin.
Citation
Pittaway , R , Fuentes , J A & Clarke , M L 2017 , ' Diastereoselective and branched-aldehyde-selective tandem hydroformylation-hemiaminal formation : synthesis of functionalized piperidines and amino-alcohols ' , Organic Letters , vol. 19 , no. 11 , pp. 2845-2848 . https://doi.org/10.1021/acs.orglett.7b01049
Publication
Organic Letters
Status
Peer reviewed
ISSN
1523-7060Type
Journal article
Description
Financial support by EPSRC DTG grant and EP/M0038868/1 is gratefully acknowledged.Collections
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