Mu Nan
2009
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Journal
Tianjin Chemical Industry
Abstract
Solvent-free manufacturing process of high pure benzyl chloroformate starting from benzyl alcohol and phosgene was researched.The optimum reaction conditions were under the protection of dried nitrogen,benzylalcohol (leq.) was added dropwise to phosgene (2eq.) at-10 to-5℃ in 10h,then refluxed at 10℃ for 10h.The procedure has the advantages of mild reaction conditions,high purity of product (GC 98.5%),high yield (99%),simple workup and low cost,thus it was suited to industrial scale production.