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General procedure. To a stirred solution of the acetate (1 mmol, and iodine (10mol, in dichloromethane (10 mL, allyltrimethylsilane (1.2mmol) was added slowly dropwise at 0°C and the mixtures allowed to stir at room temperature for the appropriate time (Table 1, After completion of the reaction, as indicated by TLC, the reaction mixture was quenched with water and extracted with dichloromethane (2 x 10mL, The combined organic extracts were washed with 15% solution of sodium thiosulfate, followed by water, brine and dried over anhydrous Na2SO4. Removal of solvent followed by purification on silica gel using mixtures of ethyl acetate:n- hexane (1:9) as eluent afforded pure allyl derivative. Spectral data for selected products: Compound 3c: Colorless solid, m.p. 104-106° C, IR (KBr, V 3293, 3188, 4122, 2963, 2917, 1666, 1608, 1550, 1409, 1320, 1267, 995, 911, 832, 754, 546 cm-1; 1HNMR 300MHz, CDCl3
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+ + H): 235.
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