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91246-71-8

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91246-71-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91246-71-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,2,4 and 6 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 91246-71:
(7*9)+(6*1)+(5*2)+(4*4)+(3*6)+(2*7)+(1*1)=128
128 % 10 = 8
So 91246-71-8 is a valid CAS Registry Number.

91246-71-8Relevant articles and documents

Cobalt-Porphyrin-Catalyzed Intramolecular Buchner Reaction and Arene Cyclopropanation of In Situ Generated Alkyl Diazomethanes

Wang, Haixu,Zhou, Cong-Ying,Che, Chi-Ming

supporting information, p. 2253 - 2258 (2017/07/07)

Cobalt(II)-porphyrin catalyzed intramolecular Buchner reaction and arene cyclopropanation of alkyl diazomethanes generated in situ from N-tosylhydrazones gave a range of bicyclic cycloheptatriene fused pyrrolidines and tetracyclic cyclopropane fused pyrro

Lithium tetrafluoroborate catalyzed highly efficient inter- and intramolecular aza-Michael addition with aromatic amines

Lad,Kulkarni,Desai,Wadgaonkar

experimental part, p. 1059 - 1064 (2012/03/11)

Lithium tetrafluoroborate has been demonstrated for the first time to be an efficient catalyst in intermolecular aza-Michael addition aromatic amines to electron deficient alkenes. Suitability of the same catalyst in intramolecular aza-Michael addition leading 2-aryl-2,3-dihydroquinolin-4(1H) ones has also been described.

Zirconium tetrakis(dodecylsulfate) as an efficient and recyclable lewis acid-surfactant-combined catalyzed C-C and C-N bond forming under mild and environmentally benign conditions

Jafarpour, Maasoumeh,Rezaeifard, Abdolreza,Aliabadi, Marzieh

scheme or table, p. 94 - 99 (2010/04/23)

A green catalytic method for C-C and C-N bond forming via Michael addition of aromatic amines and indoles to electron-deficient olefins using Zirconium tetrakis(dodecylsulfate) in water under mild conditions with high yields and selectivity has been developed. The reusability of the catalyst has been successfully examined without any noticeable loss of its catalytic activity.

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