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76877-59-3

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76877-59-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 76877-59-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,6,8,7 and 7 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 76877-59:
(7*7)+(6*6)+(5*8)+(4*7)+(3*7)+(2*5)+(1*9)=193
193 % 10 = 3
So 76877-59-3 is a valid CAS Registry Number.

76877-59-3Relevant articles and documents

ALKYLATION OF 3-ETHOXY-2-LITHIOACRYLONITRILE: SYNTHESIS OF 5-ALKYLCYTOSINES

Smirnow, David,Hopkins, Paul B.

, p. 1187 - 1194 (2007/10/02)

The utility of commercially available, inexpensive 3-ethoxyacrylonitrile (1) as a precursor for the synthesis of 5-alkylcytosines was investigated.Metalation of 1 affords a 2-lithio derivative of sufficient stability to allow alkylation with allylic or benzylic bromides and primary iodides which are unbranched at the β-position.The alkylated derivatives are converted to 5-alkylcytosines in modest yield by exposure to sodium ethoxide and urea in ethanol.

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