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{1-methylcarbamoyl-2-[4-(2-nitro-phenoxy)-phenyl]-ethyl}-carbamic acid tert-butyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

229640-28-2

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229640-28-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 229640-28-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,9,6,4 and 0 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 229640-28:
(8*2)+(7*2)+(6*9)+(5*6)+(4*4)+(3*0)+(2*2)+(1*8)=142
142 % 10 = 2
So 229640-28-2 is a valid CAS Registry Number.

229640-28-2Upstream product

229640-28-2Downstream Products

229640-28-2Relevant academic research and scientific papers

Arylmethanesulfonates are convenient latent phenols in the nucleophilic aromatic substitution reaction

Dinsmore, Christopher J.,Zartman, C. Blair

, p. 3989 - 3990 (1999)

The methanesulfonyl protecting group for a phenol is conveniently unmasked under the conditions of the S(N)Ar reaction with an activated aryl halide, producing diarylether products directly. The method is advantageous when the preparation of a phenol substrate requires O-protection, since the selection of the robust methanesulfonate as a latent phenol obviates a deprotection step prior to the S(N)Ar reaction.

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