N-PROPYL CHLORIDE.180 Vol

Step A Preparation of (2 -isopropylidenedioxy)-propyl o-nitrobenzoate-SSS g of 2 -di-methyl4-hydroxymethyl-1 -dloxolane were dissolved under agitation In 60 cc of anhydrous pyridine. The solution was cooled to i-5 G and 86.5 g of o-nitrobenzoyl chloride (prepared by Leckermann et a., 8er. vol. 80,p.488,1947) were slowly introduced Into it. The reaction mixture was agitated for a period of two hours at room temperature and then was poured into 500 cc of ether. The mixture was filtered and the filtrate was washed successively with 0.5 N sulfuric acid solution, with aqueous sodium bicarbonate solution and finally with water until the wash waters were neutral. The washed solution was dried over sodium sulfate and filtered again. The filtrate was distilled to dryness under vacuum to obtain 116.5 g (being a yield of 92%) of (2,3-isopropylidenedioxy)-propyl o-nitrobenzoate in the form of a yellow oil which distilled at 178 to 180°C at a pressure of 1 mm. 

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