¹³C‐Labelled benzo[a]pyrene and derivatives. An efficient pathway of labelling the 1‐, 2‐, and 3‐positions

Abstract

AN EFFICIENT PATHWAY OF LABELLING THE 1-, 2-, AND 3-POSITIONS A t e n step synthesls o f b e n~o [ a ] p y r e n e -l -~3 C , -2-l3C, o r 3-13C from 2,3,7, llb-tetrahydrobenr[d,e]anthracen-3(1H)-one t s descrlbed t n whtch t h e l n l t l a l step I n v o l v e s t h e condensatlon o f t h l s ketone w l t h t h e l l t h l u m enolate o f e t h y l acetate. bento[a]pyrenes.