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104663-01-6

104663-01-6

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Relevant articles and documentsAll total 1 Articles be found

1-Alkoxycarbonylbenzimidazole-2-carbamates

Viswanathan, N.,Sidhaye, A. R.

, p. 948 - 951 (2007/10/02)

Several benzimidazole-2-carbamates with a substituent at position-5 have been reacted with alkyl chloroformates.The isomers (1) and (2) thus obtained have been separated and their structures established by PMR spectra.In some cases the 1,3-dialkoxycarbonyl-2-benzimidazolones (3) are also obtained.The compounds show high anthelmintic activity.

Process route upstream and downstream products

Process route

Fenbendazole
43210-67-9

Fenbendazole

1-carbomethoxy-2-carbomethoxyamino-5-phenylsulfinylbenzimidazole
104663-01-6

1-carbomethoxy-2-carbomethoxyamino-5-phenylsulfinylbenzimidazole

Conditions
Conditions Yield
Multi-step reaction with 2 steps
1: 12 g / 1N aq sodium hydroxide / CH2Cl2 / 20 h / Ambient temperature
2: 8 g / m-chloroperbenzoic acid / CH2Cl2 / 16 h / 15 - 20 °C
With sodium hydroxide; 3-chloro-benzenecarboperoxoic acid; In dichloromethane;
methyl chloroformate
79-22-1

methyl chloroformate

6-Benzenesulfinyl-2-methoxycarbonylamino-benzoimidazole-1-carboxylic acid methyl ester
104663-22-1

6-Benzenesulfinyl-2-methoxycarbonylamino-benzoimidazole-1-carboxylic acid methyl ester

1-carbomethoxy-2-carbomethoxyamino-5-phenylsulfinylbenzimidazole
104663-01-6

1-carbomethoxy-2-carbomethoxyamino-5-phenylsulfinylbenzimidazole

Conditions
Conditions Yield
With sodium hydroxide; In dichloromethane; Ambient temperature;

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