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851045-73-3

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851045-73-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 851045-73-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,1,0,4 and 5 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 851045-73:
(8*8)+(7*5)+(6*1)+(5*0)+(4*4)+(3*5)+(2*7)+(1*3)=153
153 % 10 = 3
So 851045-73-3 is a valid CAS Registry Number.

851045-73-3Relevant articles and documents

Stereoinversion of Unactivated Alcohols by Tethered Sulfonamides

Marcyk, Paul T.,Jefferies, Latisha R.,AbuSalim, Deyaa I.,Pink, Maren,Baik, Mu-Hyun,Cook, Silas P.

supporting information, p. 1727 - 1731 (2019/01/21)

The direct, catalytic substitution of unactivated alcohols remains an undeveloped area of organic synthesis. Moreover, catalytic activation of this difficult electrophile with predictable stereo-outcomes presents an even more formidable challenge. Described herein is a simple iron-based catalyst system which provides the mild, direct conversion of secondary and tertiary alcohols to sulfonamides. Starting from enantioenriched alcohols, the intramolecular variant proceeds with stereoinversion to produce enantioenriched 2- and 2,2-subsituted pyrrolidines and indolines, without prior derivatization of the alcohol or solvolytic conditions.

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