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207597-97-5

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207597-97-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 207597-97-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,7,5,9 and 7 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 207597-97:
(8*2)+(7*0)+(6*7)+(5*5)+(4*9)+(3*7)+(2*9)+(1*7)=165
165 % 10 = 5
So 207597-97-5 is a valid CAS Registry Number.

207597-97-5Downstream Products

207597-97-5Relevant articles and documents

General Synthetic Approach to Rotenoids via Stereospecific, Group-Selective 1,2-Rearrangement and Dual S N Ar Cyclizations of Aryl Fluorides

Matsuoka, Seiya,Nakamura, Kayo,Ohmori, Ken,Suzuki, Keisuke

, p. 1139 - 1156 (2019)

A general synthetic approach to rotenoids is described, featuring 1) stereospecific, group-selective 1,2-rearrangements of epoxy alcohols, and 2) S N Ar oxy-cyclizations of aryl fluorides. The common intermediate epoxyketone, en route to (-)-rotenone and (-)-deguelin, was prepared from d -araboascorbic acid in five steps. Also described is the conversion of (-)-deguelin into oxidized congeners, (-)-tephrosin and (+)-12a- epi -tephrosin.

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