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127595-55-5

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127595-55-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 127595-55-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,5,9 and 5 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 127595-55:
(8*1)+(7*2)+(6*7)+(5*5)+(4*9)+(3*5)+(2*5)+(1*5)=155
155 % 10 = 5
So 127595-55-5 is a valid CAS Registry Number.

127595-55-5Downstream Products

127595-55-5Relevant articles and documents

Regioselective Reductive Electrophilic Substitution of 1,2,3-Trimethoxybenzene and Its 5-Alkyl-Substituted Homologues

Azzena, Ugo,Denurra, Teresa,Melloni, Giovanni,Piroddi, Anna Maria

, p. 5386 - 5390 (2007/10/02)

The methoxy group in the 2-position of 1,2,3-trimethoxybenzene (1) can be regioselectively removed by electron transfer from alkali metals and replaced with a variety of electrophiles in a one-pot procedure, affording 2-substituted resorcinol dimethyl ethers.The usefulness of this synthetic method is illustrated by numerous examples.This reaction procedure has been successfully extended to the 5-methyl-substituted homologue (2), but limitations occur with the higher homologue 1-pentyl-3,4,5-trimethoxybenzene (3).Investigations on the mechanism of demethoxylation, with the aid of labeling experiments, provided clear evidence for the intermediacy of aryl radicals and explained the low yields obtained in the reductive electrophilic substitution of compound 3.

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