Methyl carbamate, with potassium hydroxide

Methylcyclohexene, from 2-methyl-cyclohexanone tosylhydrazone and methyllithium, 51,69 Methylenecyclopropanes, 50,30 Methyl iodide, with triphenyl phosphite and cyclohexanol, 51,45 with triphenyl phosphite and neopentyl alcohol, 51,44 METHYL ftrans-2-IODO-l-TETRA-LIN)CARBAMATE, 51,112 Methyl (frans-2-iodo-l-tetralin)carba-mate, with potassium hydroxide to give 1,2,3,4-tetrahydronaph-thalene(l,2)imine, 51,53 Methyllithium, with camphor tosylhydrazone to give 2-bomene, 51, 66... 

The reactions of S methyl cyanodithioimidocarb-onate with potassium hydroxide in alkyl or benzyl alcohol furnished the 0-alkyl and benzyl O-potassium cyanoimido-carbonates (30-34). The reaction of the potassium salts (30, 32 or 33) with a 10% excess of alkyl, allyl or benzyl halides afforded the unknown titled carbamates (35-46). 

The insecticide carbaryl (1-naphthyl-A-methylcarbamate, Figure 7.4) has been measured on filter paper exposed during aerial spraying using an ODS-modified silica column and ED (GCE, +0.75 V vs Ag/AgCl) after pre-column alkaline hydrolysis to 1-naphthol. The eluent was acetonitrile-acetic acid-aq. potassium chloride (0.5 mol L ) (50 + 1 + 49). 2-Naphthol was the internal standard. Postcolumn hydrolysis with sodium hydroxide of carbaryl and some other A -methyl-carbamate pesticides has also been employed in measuring crop residues of these compounds. The analytical column used was octyl-modified silica. Elution was... 

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