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Acetic acid, [bis(1,1-dimethylethyl)(diphenylamino)phosphoranylidene]-, ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

139475-31-3

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139475-31-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139475-31-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,4,7 and 5 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 139475-31:
(8*1)+(7*3)+(6*9)+(5*4)+(4*7)+(3*5)+(2*3)+(1*1)=153
153 % 10 = 3
So 139475-31-3 is a valid CAS Registry Number.

139475-31-3Downstream Products

139475-31-3Relevant academic research and scientific papers

REACTIONS OF ETHOXYETHYNYLPHOSPHINES WITH PHENYL AZIDE AND NUCLEOPHILES.1,5-ALKYLOTROPIC MIGRATION IN PHOSPHORUS(IV)-SUBSTITUTED KETENE ACETALS

Lukashev, N. V.,Zhichkin, P. E.,Fil'chikov, A. A.,Kazankova, M. A.,Luzikov, Yu. N.,Beletskaya, I. P.

, p. 2486 - 2491 (2007/10/02)

Ethoxyethynyl-di-tert-butylphosphine reacts with phenyl azide in the presence of amines, alcohols, phenol, or water by addition of the nucleophile to the triple bond of the unstable ethoxyethynyldi-tert-butyl-N-phenyliminophosphorane.It has been found that iminophosphorylated ketene acetals are usually unstable, undergoing 1,5-alkylotropic migration to give alkoxycarbonylmethylene(alkylphenylamino)phosphoranes.

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