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109239-18-1

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109239-18-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109239-18-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,2,3 and 9 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 109239-18:
(8*1)+(7*0)+(6*9)+(5*2)+(4*3)+(3*9)+(2*1)+(1*8)=121
121 % 10 = 1
So 109239-18-1 is a valid CAS Registry Number.

109239-18-1Relevant articles and documents

Expedient synthesis of fused azepine derivatives using a sequential rhodium(II)-catalyzed cyclopropanation/1-aza-Cope rearrangement of dienyltriazoles

Schultz, Erica E.,Lindsay, Vincent N. G.,Sarpong, Richmond

, p. 9904 - 9908,5 (2014)

A general method for the formation of fused dihydroazepine derivatives from 1-sulfonyl-1,2,3-triazoles bearing a tethered diene is reported. The process involves an intramolecular cyclopropanation of an α-imino rhodium(II) carbenoid, leading to a transien

Regioselective control in the palladium-catalyzed isomerization of methylenecyclopropylcarbinols using acetic acid as a reagent

Shi, Min,Wang, Bao-Yu,Shao, Li-Xiong

, p. 909 - 912 (2008/02/02)

Tuning the regioselectivity of the Pd-catalyzed isomerization of methylenecyclopropylcarbinols in acetic acid is achieved by a subtle choice of the ligand and/or solvent. When dioxane is used as the solvent, penta-2,4-dien-1-ols are formed, whereas when A

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