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- W2364397712 abstract "With the catalyst of AlCl_3, aniline reacted with CS_2 under the mild conditions of room temperature and ambient atmosphere. Recrystallzing the reaction mixture with ethanol gave white, flake-like pure crystal, which is phenyl iso-thiocyanate determined by GC/MS spectrum. However, identified by melting point, HPLC/MS/MS, FTIR, UV and 1H NMR analyses, the pure crystal should be diphenyl thiourea. Associated with GC/FTIR spectrum, the mechanism of mass cleavage of diphenyl thiourea was studied. The results showed that neutral molecule of aniline may be lost in the cleavage of mass spectra, while the remainder molecular ion of phenyl iso-thiocyanate became steady due to the conjugate of π electron. This mechanism can also reasonably explain the fact that only molecular ionic peak of phenyl iso-thiocyanate and naphthyl iso-thiocyanate was presented in the GC/MS spectra of diphenylurea and diphenyl thiourea." @default.
- W2364397712 created "2016-06-24" @default.
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- W2364397712 date "2003-01-01" @default.
- W2364397712 modified "2023-09-25" @default.
- W2364397712 title "Neutral Loss of Aniline in GC/MS Analysis of Diphenyl Thiourea" @default.
- W2364397712 hasPublicationYear "2003" @default.
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