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140696-24-8

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140696-24-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 140696-24-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,6,9 and 6 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 140696-24:
(8*1)+(7*4)+(6*0)+(5*6)+(4*9)+(3*6)+(2*2)+(1*4)=128
128 % 10 = 8
So 140696-24-8 is a valid CAS Registry Number.

140696-24-8Relevant articles and documents

Indium triflate catalyzed rearrangement of aryl-substituted cyclopropyl carbinols to 1,4-disubstituted 1,3-butadienes

Ranu, Brindaban C.,Banerjee, Subhash

, p. 3012 - 3015 (2006)

Aryl-substituted cyclopropyl carbinol derivatives undergo a facile stereoselective rearrangement catalyzed by In(OTf)3 in dichloromethane under sonication to produce the substituted conjugated all-trans-butadienes. Wiley-VCH Verlag GmbH & Co. KGaA, 2006.

CYCLOPROPANATION PROCESS

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Page/Page column 24, (2009/04/25)

A method for the preparation of cyclopropyl carbinols by cyclopropanation of unsaturated alcoholates, utilising a reagent system selected from (A) magnesium metal and dibromomethane, and (B) dibromomethane and a tertiary Grignard reagent, the reaction being carried out in the presence of an ether solvent. The process is useful, for example, for the preparation of ingredients for the flavour and fragrance industry.

Preparation of aryl-substituted E-homoallylic bromides from cyclopropylcarbinol and PBr3

Roy, Sanchita,Guha, Sharmistha,Kumar Dutta, Samit,Bhar, Sanjay

, p. 1919 - 1922 (2007/10/03)

An expeditious synthesis of aryl substituted E-homoallylic bromides has been accomplished by the cleavage of cyclopropylcarbinols with phosphorus tribromide. Copyright Taylor & Francis Group, LLC.

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