参考文献
Shonle; Keltch; Swanson
Journal of the American Chemical Society, 1930 , vol. 52, p. 2445
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Mallinckrodt Chem. Works
Patent: US2358768 , 1941 ;
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Wallingford; Thorpe; Homeyer
Journal of the American Chemical Society, 1942 , vol. 64, p. 581