Li in tetrahydrofuran byproducts: LiCl; under N2 atm. to suspn. Li in THF at 0°C Ph3SnCl in THF was addeddropwise, allowed to warm to room temp., stirred for 16 h, soln. o-(met hylthio)benzyl chloride in THF was added at -78.egree.C, allowed to warmto room temp., stirred for 16 h; solvent was evapd. in vacuo, residue was extd. with hexane-CH2Cl2, soln.was filtered, residue was recrystd. grom hot hexane-CH2Cl2 (10:1); elem . anal.;

in not given byproducts: MgCl2; (N2); fast crystn. upon cooling from hot hexanes/CH2Cl2;