... The Journal of Organic ... of saturated NaHCO 3 containing 25 g of Na 2 S 2 O 3 ) and saturated brine, and dried over anhyd Na 2 SO 4 . The organic layer was ... 1 H NMR (CDCl 3 ): 2.95 (dd, 1H, J = 5.1 Hz, 18.5 Hz), 3.04 (dd, 1H, J = 5.1 Hz, 18.5 Hz), 4.62−4.75 (m, 3H), 5.11 (s, 2H ...