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3-<(1R,6R)-6-(p-tolylsulfonyl)bicyclo<4.1.0>hept-1-yl>propanol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

140420-99-1

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140420-99-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 140420-99-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,4,2 and 0 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 140420-99:
(8*1)+(7*4)+(6*0)+(5*4)+(4*2)+(3*0)+(2*9)+(1*9)=91
91 % 10 = 1
So 140420-99-1 is a valid CAS Registry Number.

140420-99-1Relevant articles and documents

Asymmetric cyclopropanation by reaction of a γ-chloromethylated chiral vinylic sulfoxide with allylmagnesium bromide

Takemoto,Ohra,Sugiyama,Imanishi,Iwata

, p. 571 - 577 (2007/10/02)

An optically active vinylic sulfoxide bearing a leaving group at the γ-position was stereoselectively transformed into a chiral cyclopropane by means of a Michael addition with an allylmagnesinm bromide. The Michael induced ring-closure reaction requires both allylmagnesium bromide as a nucleophile and chloride as a leaving group for high diastereoselectivity. The absolute stereochemistry of the cycloadduct was confirmed by X-ray analysis.

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