131772-26-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131772-26-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,7,7 and 2 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 131772-26:
(8*1)+(7*3)+(6*1)+(5*7)+(4*7)+(3*2)+(2*2)+(1*6)=114
114 % 10 = 4
So 131772-26-4 is a valid CAS Registry Number.
131772-26-4Relevant academic research and scientific papers
Stereospecific synthesis of N-acyl-(E)-vinyl-, dienyl-, and enynylsulfoximines
Paley,Snow
, p. 5853 - 5856 (2007/10/02)
A β-tosylvinylsulfoximine, 5, was used as the common starting point for the preparation of the title compounds. Treatment of 5 with 'higher-order cuprates' or trialkylalanes (with a Pd(II) catalyst) afforded N-TBDMS-(E)-vinylsulfoximines, whereas dienylsu
