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1287759-55-0

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1287759-55-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1287759-55-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,7,7,5 and 9 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1287759-55:
(9*1)+(8*2)+(7*8)+(6*7)+(5*7)+(4*5)+(3*9)+(2*5)+(1*5)=220
220 % 10 = 0
So 1287759-55-0 is a valid CAS Registry Number.

1287759-55-0Relevant articles and documents

An alternative synthesis of 2-alkylidene-3,4-dihydro-2 H-1,4-benzoxazines by intramolecular gold-catalyzed hydroalkoxylation of 2-(prop-2-yn-1-ylamino) phenols

Manzo, Angelo M.,Perboni, Alcide,Broggini, Gianluigi,Rigamonti, Micol

experimental part, p. 127 - 132 (2011/02/28)

An efficient gold-catalyzed procedure to synthesize 2-alkylidene-3,4- dihydro-2H-1,4-benzoxazines has been developed starting from 2-alkynyl-substituted phenols. This is an intramolecular hydroalkoxylation reaction on alkynes tethered to a phenol moiety that represents a valuable alternative to the already reported transition-metal-catalyzed procedures. Georg Thieme Verlag Stuttgart · New York.

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