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1- NAPHTHALENE CARBAMIC ACID

Naphthalene carbamic acid, l,2,3,4-tetrahydro-2-iodo-, methyl... [Pg.57]

Higher-molecular-weight amines are treated in the liquid phase usually in solvents like ethyl acetate, toluene, chlorobenzene, or chloro-naphthalene. This process is illustrated by the preparation of p-nitro-phenyl isocyanate (95%). Amine hydrochlorides or carbamic acids are sometimes used in place of the free amine. ... [Pg.325]

Since BAs occurring in food do not exhibit satisfactory absorbance or fluorescence in the visible or ultraviolet range, chemical derivatization, either pre- (35-37) or postcolumn (38), is usually used for their detection in HPLC. The most frequently employed reagents for precolumn derivatization are fluorescamine, aminoquinolyl-lV-hydroxysuccinimidyl carbamate (AQC) (39, 40), 9-fluorenylmethyl chloroformate (FMOC) (41-43), 4-dimethylaminoazobenzene-4 -sul-fonyl chloride (dabsylchloride, DBS) (44), N-acetylcysteine (NAC) (45,46), and 5-dimethyl-amino-1-naphthalene-1-sulfonyl chloride (dansylchloride, DNS) (47,48), phthalaldehyde (PA), and orf/to-phthaldialdehyde (OPA) (49-51), together with thiols such as 3-mercaptopropionic acid (MPA) (37) and 2-mercaptoethanol (ME) (35,49). [Pg.883]

See other pages where 1- NAPHTHALENE CARBAMIC ACID is mentioned: [Pg.75]    [Pg.75]    [Pg.485]    [Pg.71]    [Pg.18]    [Pg.189]    [Pg.89]    [Pg.288]    [Pg.31]    [Pg.2103]    [Pg.341]    [Pg.436]    [Pg.275]    [Pg.718]    [Pg.217]    [Pg.680]    [Pg.337]    [Pg.2608]    [Pg.381]    [Pg.1027]    [Pg.285]   


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1- NAPHTHALENE CARBAMIC

Carbamic acid

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