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74502-20-8

74502-20-8

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74502-20-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74502-20-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,5,0 and 2 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 74502-20:
(7*7)+(6*4)+(5*5)+(4*0)+(3*2)+(2*2)+(1*0)=108
108 % 10 = 8
So 74502-20-8 is a valid CAS Registry Number.

74502-20-8Relevant articles and documents

Bis(oxazoline) and bis(oxazolinyl)pyridine copper complexes as enantioselective Diels-Alder catalysts: Reaction scope and synthetic applications

Evans, David A.,Barnes, David M.,Johnson, Jeffrey S.,Lectka, Thomas,Von Matt, Peter,Miller, Scott J.,Murry, Jerry A.,Norcross, Roger D.,Shaughnessy, Eileen A.,Campos, Kevin R.

, p. 7582 - 7594 (2007/10/03)

The scope of the Diels-Alder reaction catalyzed by bis(oxazoline) copper complexes has been investigated. In particular, [Cu((S,S)-t-Bu-box)](SbF6)2 (1b) has been shown to catalyze the Diels-Alder reaction between 3-propenoyl- 2-oxaz

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