eprintid: 19871 rev_number: 16 userid: 1418 dir: disk0/00/01/98/71 datestamp: 2013-10-17 15:36:00 lastmod: 2019-02-02 15:58:43 status_changed: 2013-10-17 15:36:00 type: article metadata_visibility: show item_issues_count: 0 eprint_status: archive creators_name: Petit, M creators_name: Geib, SJ creators_name: Curran, DP creators_email: creators_email: geib@pitt.edu creators_email: curran@pitt.edu creators_id: creators_id: GEIB creators_id: CURRAN creators_orcid: creators_orcid: 0000-0002-9160-7857 creators_orcid: title: Asymmetric reactions of axially chiral amides: Use of removable ortho-substituents in radical cyclizations of o-iodoacrylanilides and N-allyl-N-o-iodoacrylamides ispublished: pub divisions: sch_as_chemistry full_text_status: public abstract: Radical cyclizations of enantiomerically enriched o-iodoacrylanilides and N-allyl-o-iodoanilides bearing a removable ortho-substituent such as trimethylsilyl or bromine provide oxindoles and indoles in good yields and with good to excellent levels of chirality transfer from the N-Ar axis to the new stereocenter. Transition state models for the chirality transfer are suggested. Chemoselectivity of the radical cyclization in favor of the iodine in the case of 2-iodo-6-bromo-N-allylacrylamides has been exploited for the synthesis of chiral pyrroloquinolinones by a one-pot sequence of 5-exo and 6-endo cyclizations. © 2004 Elsevier Ltd. All rights reserved. date: 2004-08-23 date_type: published publication: Tetrahedron volume: 60 number: 35 pagerange: 7543 - 7552 refereed: TRUE issn: 0040-4020 id_number: 10.1016/j.tet.2004.05.116 citation: Petit, M and Geib, SJ and Curran, DP (2004) Asymmetric reactions of axially chiral amides: Use of removable ortho-substituents in radical cyclizations of o-iodoacrylanilides and N-allyl-N-o-iodoacrylamides. Tetrahedron, 60 (35). 7543 - 7552. ISSN 0040-4020 document_url: http://d-scholarship-dev.library.pitt.edu/19871/1/licence.txt