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1613439-86-3

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1613439-86-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1613439-86-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,1,3,4,3 and 9 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1613439-86:
(9*1)+(8*6)+(7*1)+(6*3)+(5*4)+(4*3)+(3*9)+(2*8)+(1*6)=163
163 % 10 = 3
So 1613439-86-3 is a valid CAS Registry Number.

1613439-86-3Downstream Products

1613439-86-3Relevant articles and documents

Cationic Ir/Me-BIPAM-catalyzed asymmetric intramolecular direct hydroarylation of α-ketoamides

Shirai, Tomohiko,Ito, Hajime,Yamamoto, Yasunori

, p. 2658 - 2661 (2014/03/21)

Asymmetric intramolecular direct hydroarylation of α-ketoamides gives various types of optically active 3-substituted 3-hydroxy-2-oxindoles in high yields with complete regioselectivity and high enantioselectivities (84-98 % ee). This is realized by the use of the cationic iridium complex [Ir(cod) 2](BArF4) and the chiral O-linked bidentate phosphoramidite (R,R)-Me-BIPAM. Carbon's got a brand new bond: Asymmetric intramolecular direct hydroarylation of α-ketoamides gives various optically active 3-substituted 3-hydroxy-2-oxindoles in high yields with complete regioselectivity and high enantioselectivities. This is realized by the use of an asymmetric cationic iridium complex formed in situ (see Scheme).

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