Synthesis of New Xanthones, I (original) (raw)

Madalena Pinto

1974, Helvetica Chimica Acta

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5 pages

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(silica gel, C,H,/EtOAc 9 : 1) 0.11 g of oily N-benzyl, N-(cis-3-phenylallyl)-toluenesulfonamide ( 5 ) . -IR. (Nujol) : 13.50, 1170, no band a t 940. -lH-NMR. (100 MHz) : 2.41 (3 H, s) ; 3.98 ( 2 H, d x d , J = 2 Hz and 6.5 Hz); 4.26 (2 H, s ) ; 5.38 ( l H , d x t , J = 11.5 Hz and 6.5 Hz); 6.42 ( l H , d x t , , T = 11.5 Hz and 1.5 Hz); 6.8-7.4 (12 H ) ; 7.66 ( 2 H, d , J = 8 Hz).