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75227-11-1

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75227-11-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 75227-11-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,2,2 and 7 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 75227-11:
(7*7)+(6*5)+(5*2)+(4*2)+(3*7)+(2*1)+(1*1)=121
121 % 10 = 1
So 75227-11-1 is a valid CAS Registry Number.

75227-11-1Relevant articles and documents

Synthesis of bisabolane sesquiterpenes: A Johnson-Claisen rearrangement approach

Du, Zhen Ting,Yu, Hong Rui,Xu, Yan,Li, Yong,Li, An Pai

scheme or table, p. 813 - 815 (2011/11/12)

Several bisabolane sesquiterpenes, (±)-curcumene, (±)-curcuphenol, (±)-curcudiol and (±)-curcuhydroquinone, have been synthesized in racemic form and fully characterized. The salient characteristic of our approach is that a Johnson-Claisen arrangement was

A New Synthesis of (+/-)-5,6-Dehydrosenedigitalene

Vig, O. P.,Sharma, M. L.,Verma, N. K.

, p. 384 - 385 (2007/10/02)

Ethyl 2-carbethoxy-5-oxohexanoate (II) on heating with NaCl in DMSO-water mixture gives the monoester (III) which when submitted to selective Grignard reaction with p-tolylmagnesium bromide furnishes ethyl 5-hydroxy-5-(p-tolyl)hexanoate (IV).The benzylic alcohol (IV) on catalytic hydrogenolysis gives ethyl 5-(p-tolyl)hexanoate (V) which on reduction with LAH provides the alcohol (VI).Oxidation of VI with Corey's reagent furnishes the aldehyde (VII) which on Wittig reaction with methylenetriphenylphosphorane in DMSO yields the title compound (I).

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