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58435-70-4

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58435-70-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 58435-70-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,8,4,3 and 5 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 58435-70:
(7*5)+(6*8)+(5*4)+(4*3)+(3*5)+(2*7)+(1*0)=144
144 % 10 = 4
So 58435-70-4 is a valid CAS Registry Number.

58435-70-4Downstream Products

58435-70-4Relevant articles and documents

Highly efficient synthesis of functionalized α-oxyketones: Via Weinreb amides homologation with α-oxygenated organolithiums

Pace, Vittorio,Murgia, Irene,Westermayer, Sophie,Langer, Thierry,Holzer, Wolfgang

supporting information, p. 7584 - 7587 (2016/07/06)

An efficient, chemoselective homologation of Weinreb amides to the corresponding variously substituted α-oxyketones has been developed via the addition of lithiated α-oxygenated species. This one-step, experimentally easy, high yielding protocol is amenable not only for accessing simple α-oxyketones but also for more complex substituted ones ranging from primary and secondary alkyl-type to aromatic ones. Full delivery of the stereochemical information contained in the starting materials is observed through both the employment of enantioenriched Weinreb amides and optically active organolithium species.

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