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87769-80-0

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87769-80-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87769-80-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,7,6 and 9 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 87769-80:
(7*8)+(6*7)+(5*7)+(4*6)+(3*9)+(2*8)+(1*0)=200
200 % 10 = 0
So 87769-80-0 is a valid CAS Registry Number.

87769-80-0Downstream Products

87769-80-0Relevant articles and documents

Silylated Biphenyl Derivatives, Ethyl Benzoates, and Benzophenones by Regioselective -Cycloadditions

Birkofer, Leonhard,Wahle, Bernd

, p. 3309 - 3315 (2007/10/02)

The cycloaddition of the N-methyl-2-pyridones 1a-d with phenyl(trimethylsilyl)ethyne (2) proceeds regioselectively to give silylated biphenyl derivatives 5a, 6b, 5c,d.Similarly the reactions of ethyl (trimethylsilyl)propiolate (3) and of benzoyl(trimethylsilyl)ethyne (4) with 1a-c afford the silylated ethyl benzoates 5e, 6f, 5g and the benzophenones 5h, 6i, 5j, respectively.

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