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Benzyl-diphenyl-t-butylphosphoniumbromid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

21955-54-4

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21955-54-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21955-54-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,9,5 and 5 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 21955-54:
(7*2)+(6*1)+(5*9)+(4*5)+(3*5)+(2*5)+(1*4)=114
114 % 10 = 4
So 21955-54-4 is a valid CAS Registry Number.

21955-54-4Downstream Products

21955-54-4Relevant academic research and scientific papers

Titanium (IV) catalysis in the reduction of phosphine oxides

Coumbe, Tristan,Lawrence, Nicholas J.,Muhammad, Faiz

, p. 625 - 628 (2007/10/02)

Phosphine oxides can be reduced by triethoxysilane, or more conveniently polymethylhydrosiloxane, and catalytic titanium (IV) isopropoxide and provides a system for the efficient one-pot generation of phosphonium salts; the reduction occurs with retention of configuration at phosphorus.

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