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90923-99-2

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90923-99-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90923-99-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,9,2 and 3 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 90923-99:
(7*9)+(6*0)+(5*9)+(4*2)+(3*3)+(2*9)+(1*9)=152
152 % 10 = 2
So 90923-99-2 is a valid CAS Registry Number.

90923-99-2Relevant articles and documents

Propargyl anthranilate derivatives and their application in the synthesis of rings containing 1,2,3-triazolo motifs

Hradilova, Ludmila,Grepl, Martin,Hlavac, Jan,Lycka, Antonin,Hradil, Pavel

, p. 528 - 533 (2013)

Propargyl anthranilate, a simple and less studied molecule with several reactive sites, is widely applicable in organic synthesis. An optimized synthesis of this compound and its derivatives and the preparation of azide derivatives are described. The optimized process of the known intramolecular cyclization is described, and the unknown intermolecular cyclizations of these azido derivatives and formation of a macrocycle are discussed.

SYNTHESIS OF -TRIAZOLOBENZOXAZEPINES via INTRAMOLECULAR AZIDE CYCLOADDITION

Garanti, Luisa,Molteni, Giorgio,Zecchi, Gaetano

, p. 291 - 296 (2007/10/02)

Starting from isatoic anhydride and propargyl alcohols, we developed a synthetic approach to the title compounds, were the key step is an intramolecular cycloaddition of the azido group onto the acetylenic bond.

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