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736140-73-1

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736140-73-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 736140-73-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,3,6,1,4 and 0 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 736140-73:
(8*7)+(7*3)+(6*6)+(5*1)+(4*4)+(3*0)+(2*7)+(1*3)=151
151 % 10 = 1
So 736140-73-1 is a valid CAS Registry Number.

736140-73-1Downstream Products

736140-73-1Relevant articles and documents

Catalytic asymmetric epoxidation of α,β-unsaturated N-acylpyrroles as monodentate and activated ester equivalent acceptors

Matsunaga, Shigeki,Qin, Hongbo,Sugita, Mari,Okada, Shigemitsu,Kinoshita, Tomofumi,Yamagiwa, Noriyuki,Shibasaki, Masakatsu

, p. 6630 - 6639 (2006)

Catalytic asymmetric epoxidation of α,β-unsaturated N-acylpyrroles as monodentate and activated ester equivalent acceptors is described. A Sm(O-i-Pr)3/(R)-H8-BINOL complex promoted the epoxidation reaction to afford products in high yield (up to quant) and high enantiomeric excess (up to >99.5% ee). Reaction proceeded smoothly using cumene hydroperoxide (CMHP) with low explosive hazard, and completed within 0.2-0.5 h with 5 mol % catalyst. Catalyst loading was successfully reduced to as little as 0.02 mol %. The N-acylpyrrole properties as well as efficient synthesis of α,β-unsaturated N-acylpyrroles are also described.

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