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1312614-01-9

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1312614-01-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1312614-01-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,1,2,6,1 and 4 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1312614-01:
(9*1)+(8*3)+(7*1)+(6*2)+(5*6)+(4*1)+(3*4)+(2*0)+(1*1)=99
99 % 10 = 9
So 1312614-01-9 is a valid CAS Registry Number.

1312614-01-9Relevant articles and documents

Towards total synthesis of communesins and perophoramidine: Unexpected cascade reaction of Michael-Mannich-Mannich additions

Wu, Haoxing,Xiao, Xue,Qin, Yong

, p. 907 - 910 (2011/06/17)

A new type of chiral amidinobenzodiene 5 was prepared from isatin in ten steps. While attempting to prepare the core structure from 5 and tryptamine derivative 17 via a hetero Diels-Alder reaction for the total synthesis of communesin and perophoramidine, we observed an unexpected three-step, one-pot cascade reaction of Michael-Manich-Manich additions. The cascade reaction between 5 and 17 yielded diasteromers 21a and 21b with a complex polycyclic skeleton of 2,3,4,5-diindolinohexahydropyrrole in 76% yield and a ratio of 3:1. The stereochemistry of 21a was confirmed by X-ray crystal-structural analysis. Georg Thieme Verlag Stuttgart · New York.

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