17881-49-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17881-49-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,8,8 and 1 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 17881-49:
(7*1)+(6*7)+(5*8)+(4*8)+(3*1)+(2*4)+(1*9)=141
141 % 10 = 1
So 17881-49-1 is a valid CAS Registry Number.
InChI:InChI=1S/C9H13NO2Si/c1-13(2,3)12-9(11)8-6-4-5-7-10-8/h4-7H,1-3H3
17881-49-1Relevant articles and documents
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Searle,Wilkins
, p. 3897,3899 (1961)
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IPSO SUBSTITUTION OF HETEROCYCLIC TRIMETHYLSILYL CARBOXYLATES BY CARBON ELECTROPHILES
Effenberger, Franz,Koenig, Joachim
, p. 3281 - 3288 (2007/10/02)
Trimethylsilyl esters 1 of heterocyclic carboxylic acids having the ester group in the α-position to an azine nitrogen atom react with aldehydes or ketones through ipso substitution of the ester group to give (trimethylsiloxy)-alkyl-substituted heterocyclic products in good yields.
