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1307308-66-2

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1307308-66-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1307308-66-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,0,7,3,0 and 8 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1307308-66:
(9*1)+(8*3)+(7*0)+(6*7)+(5*3)+(4*0)+(3*8)+(2*6)+(1*6)=132
132 % 10 = 2
So 1307308-66-2 is a valid CAS Registry Number.

1307308-66-2Downstream Products

1307308-66-2Relevant articles and documents

Straightforward access to (imidazol-2-yl)acetates by reaction of 2-unsubstituted imidazole 3-oxides with dimethyl acetylenedicarboxylate

Mlostoń, Grzegorz,Jasiński, Marcin,Heimgartner, Heinz

, p. 2542 - 2547 (2011/05/16)

A new method for the preparation of 1,4,5-trisubstituted (imidazol-2-yl)acetates, based on the reaction of the corresponding imidazole 3-oxides with dimethyl acetylenedicarboxylate (DMAD) is described. Formation of the products is rationalized by a formal 1,3-dipolar cycloaddition and subsequent oxaloyl cleavage. 1,4,5-Trisubstituted imidazole 3-oxides bearing an electron-withdrawing substituent at C(4), easily react with dimethyl acetylenedicarboxylate (DMAD), yielding the corresponding oxobutanoates, which subsequently, in a one-pot procedure undergo hydrolysis through an "oxaloyl cleavage" mode. New (imidazol-2-yl)acetates were isolated in high yields. Copyright

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