in isopropyl alcohol refluxed for 1 h; solvent stripped off, extn. (CHCl3), washed with water, dried (MgSO4), MgSO4 and CHCl3 partially eliminated, sepn. by chromy. on silica gel, recrystn. (CHCl3/heptane); elem. anal.;

1: With sodium hydride in anhydrous xylene Reflux; 2: With hydrogenchloride

(i) NaH, MeOH, xylene, (ii) /BRN= 971516/; Multistep reaction;