Organic letters

Exploiting quadrupolar interactions in the synthesis of the macrocyclic portion of longithorone C

JE Zakarian, Y El-Azizi, SK Collins

Index: Kopp, Felix; Sapountzis, Ioannis; Knochel, Paul Synlett, 2003 , # 6 p. 885 - 887

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Citation Number: 19

Abstract

... 2,3,4,5,6-Pentafluorobenzyl and 3,5-bistrifluoromethylbenzyl ester auxiliaries can enable difficult macrocyclizations to afford rigid all-carbon paracyclophanes. ... As such, the three key carbon subunits necessary are the allylic electrophiles 6, 7, and 8 and the iso-propyl ester 9. ...

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