参考文献
Ciba
Patent: US2205627 , 1937 ;
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Ciba
Patent: DE685031 , 1937 ;
DRP/DRBP Org.Chem.
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Wettstein
Helvetica Chimica Acta, 1939 , vol. 22, p. 250,252
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Miescher; Scholz
Helvetica Chimica Acta, 1937 , vol. 20, p. 263,268
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Ciba
Patent: CH205434 , 1936 ;