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1205122-19-5

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1205122-19-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1205122-19-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,0,5,1,2 and 2 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1205122-19:
(9*1)+(8*2)+(7*0)+(6*5)+(5*1)+(4*2)+(3*2)+(2*1)+(1*9)=85
85 % 10 = 5
So 1205122-19-5 is a valid CAS Registry Number.

1205122-19-5Relevant articles and documents

(2,6-Dichloro-4-alkoxyphenyl)-(2,4-dichlorophenyl)methyl trichloroacetimidates: Protection of alcohols and carboxylic acids in solution or on polymer support

Kurosu, Michio,Li, Kai

experimental part, p. 3633 - 3641 (2010/03/05)

(2,6-Dichloro-4-methoxyphenyl)-(2,4-dichlorophenyl)-methyl trichloroacetimidate can be efficiently activated by TMSOTf (10-100 mol%) to react with alcohols and carboxylic acids. Under these conditions a wide variety of alcohols can be transformed into the corresponding ethers in excellent yields with a slight excess of the trichloroacetimidate. The resulting ethers are not susceptible to typical deprotection conditions for benzyl and 4-methoxybenzyl ether groups, however, they can be conveniently deprotected by treatment with 30-50% trifluoroacetic acid in dichloromethane. Polymer-bound (2,6-dichloro-4-alkoxyphenyl)-(2,4-dichlorophenyl)methyl trichloroacetimidate is useful for immobilization of alcohols and carboxylic acids.

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