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103977-75-9

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103977-75-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 103977-75-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,9,7 and 7 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 103977-75:
(8*1)+(7*0)+(6*3)+(5*9)+(4*7)+(3*7)+(2*7)+(1*5)=139
139 % 10 = 9
So 103977-75-9 is a valid CAS Registry Number.

103977-75-9Relevant articles and documents

PdII/Novel Chiral Cinchona Alkaloid Oxazoline-Catalyzed Enantioselective Oxidative Cyclization of Aromatic Alkenyl Amides

Tian, Qinqin,Liu, Yulong,Wang, Xiaoyun,Wang, Xie,He, Wei

, p. 3850 - 3855 (2019)

A highly enantioselective PdII-catalyzed aza-Wacker oxidation tandem cyclization of aromatic nitrogen-containing dienes has been achieved in the presence of novel chiral cinchona alkaloid oxazoline ligands for the first time, affording chiral dihydroindole nitrogen-containing polycyclic compounds with good yields (up to 83 %), high diastereoselectivities (> 95:5 dr), and excellent enantioselectivities (up to 97 % ee).

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