1-Naphthyl carbamates

Phenyl- and a-naphthyl-urethanes (Phenyl- and a-naphthyl-carbamates). Both phenyl isocyanate and a-naphthyl isocyanate react with alcohols to yield phenyl-urethanes and a-naphthyl-urethanes respectively ... 

Liu, S.-Y. and Bollag, J.M. Carbaryl decomposition to 1 -naphthyl carbamate by Aspergillus terreus, Pestic. Biochem. Physiol, l(2-3) 366-372, 1971. 

Phenol B.P. M.P. Bromo Com pound Acetate Benzoate p-Nltro benzoate 3 5 Dl-nltro-benzoate Aryloxy acetic Add NN-D1-phenyl-carhamate N- a-naphthyl carbamate p-Tolu- enesul- phonate 2 4- Dlnltro- phenyl Ether... 

PHENYL- AND 1-NAPHTHYL-URETHANS (PHENYL- AND 1-NAPHTHYL-CARBAMATES)... 

Preparation of Poly(Methyl Methacrylate-co-Ethyl-(Naphthyl Carbamate)-Methacrylate)... 

Figure 1.9 Bhopal and alternative routes to /V-methyl 2-naphthyl carbamate [67],...

The CTFB group was developed to be orthogonal to the 2-naphthyl carbamate. Benzyl esters and aromatic benzyl ethers can also be reduced in its presence. It is introduced via the chloroformate. It is cleaved by hydrogenolysis with Pd-C in sluggish cases, Pearlman s catalyst should be used. It can be cleaved without reduction of an aromatic nitrile group. 

Propyl N-(1-naphthyl) carbamate (PNC). Into 50 mL of an ethyl acetate (distilled and dried) solution of 1-naphthyl Isocyanate (Aldrich, distilled, 10 g) was added 1-propanol (Baker, distilled... 

Fluorescence of Naphthyl Carbamate Models. Two compounds (shown below) based on carbamate substituted naphthalene will be considered as models for the naphthalene diisocyanate based polyurethanes under investigation in this paper. The propyl N-(1-naphthyl) carbamate (PNC) and dipropyl N,N -naphthalene-1,5-dlylbiscarbamate (1,5-DN3) model compounds were made by reacting the requisite mono- or diisocyanate with 1-propanol. 

To establish the nature of the excimer formation as either intramolecular or intermolecular, an extremely dilute solution (1 X 10 g/dL) of NDI-650 was prepared. Even in this ultra-dilute solution excimer emission was present. Figure 7 shows a plot of the excimer (430 nm) to monomer (350 nm) intensity ratio as a function of polymer concentration. Not until a concentration of 1.0 g/dL is reached does intermolecular excimer formation between naphthyl carbamate groves on different polymer backbones become important. 

Having established the existence of the excimer emission of NDI based polyurethanes in solution, and realizing that the intramolecular excimer forming naphthyl carbamate groups are located on the backbone of the polymer, it becomes apparent that an excellent opportunity exists for chain conformational studies as a function of solvent. Figure 10 shows the steady-state fluorescence spjectra of NDI-650 in four solvents with distinctively different solvating power. In each case (curves a-d) both monomer and excimer emission are observed however, tlie ratios of excimer to monomer emission reflect conformational differences of the NDI-650 polymer in the solvent employed. The excimer to monomer intensity ratio... 

Diary] and triaryl or naphthyl carbamates exhibit low herbicidal activity. The substitution of the aryl radical for a heterocyclic radical gives heterocyclic alkyl and dialkyl ureas, of which many examples have been prepared in recent years. The herbicidal activity of urea derivatives containing a heterocyclic radical, such as benzthiazole, thiazole, thiadiazole, oxadiazole and pyridine, is favourable if one or two methyl groups are substituted at the N -nitrogen. The carrier of total or selective action in these derivatives is presumably the heterocyclic part of the molecule. More recently several new groups of compounds have become known, mainly in the patent literature, for which the structure-activity on relationships are still to be elucidated. 

Identified by Prescott et al. (1937a,b) through a naphthyl carbamate derivative and by Lockhart (1957). Rhoades (1960) with GC/MS measures a concentration of 0.2-4.0 ppm in green and 0.6-4 ppm in roasted beans (given also as unreliable data). It constitutes only 0.4 % of the coffee aroma according to Merritt et al. (1963) and is one of the alcohols found by Merritt and Robertson (1966) in the analysis of the total... 

Synonyms A-methyl-1-naphthyl carbamate methylcarbamic acid 1-naphthyl carbamate methylcarbamic acid 1-naphthyl-ester Sevin... 

Huang X, Terech P, Raghavan SR, Weiss RG. Kinetics of 5alpha-cholestan-3beta-yl N-(2-naphthyl) carbamate/n-alkane organogel formation and its influence on the fibrillar networks. J Am Chem Soc. 127(12) (2005) 4336-4344. 

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