HCID 21475335, compound → HCID 21475349, compound

Participants

Reaction Steps

A solution of sodium periodate (20.5 g) in water (190 ml) was added dropwise to a stirred solution of crude product of Step 2 in ethanol (850 ml) at 5° C. The mixture was allowed to reach 20° C. gradually and stirred for 24 hours, then concentrated under reduced pressure. The concentrate was extracted with dichloromethane (500 ml), the extract dried over sodium sulphate, filtered and concentrated under reduced pressure to give the crude product as a brown oil (27.5 g). 1H NMR (CDCl3l ): δ 1.24(3 H,t); 2.76(3 H,s); 3.56(2 H,s); 3.67(2 H, 5.12(2 H,s); 7.51-7.69(4 H,m).

Provenance & Evidence