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90073-28-2

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90073-28-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90073-28-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,0,7 and 3 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 90073-28:
(7*9)+(6*0)+(5*0)+(4*7)+(3*3)+(2*2)+(1*8)=112
112 % 10 = 2
So 90073-28-2 is a valid CAS Registry Number.

90073-28-2Downstream Products

90073-28-2Relevant articles and documents

Umsetzung von 2-Azidoalkoholen mit Trialkylphosphiten. Bildung von Aziridinen und Amidophosphorsaeureestern via Imidophosphorsaeureester und 1,3,2λ5-Oxazaphospholidine

Willeit, Armin,Mueller, Ernst Peter,Peringer, Paul

, p. 2467 - 2480 (2007/10/02)

The 2-azidoalcohols 1 and 2 react with trialkyl phosphites to trialkyl (2-hydroxyalkyl)imidophosphates 10, 14, and 15 respectively, whereas the 2-azidoalcohols 3-7 yield the 2,2,2-trialkoxy-1,3,2λ5-oxazaphospholidines 16-22 under the same reaction conditions (Scheme 2).The dialkyl (2-hydroxyalkyl)amidophosphates 23, 25, and 27-34 are obtained by the reaction of 10, and 14-22 with water (Scheme 3 and 4).By reaction with alcohols, however, both the imidophosphates 10, 14, and 15 and the 1,3,2λ5-oxazaphospholidines 16-22 are transformed to aziridines 24, 26, and 35-38 (S cheme 5).The reactions of the imidophosphates seem to proceed via 1,3,2λ5-oxazaphospholidines.

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