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43019-84-7

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43019-84-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 43019-84-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,3,0,1 and 9 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 43019-84:
(7*4)+(6*3)+(5*0)+(4*1)+(3*9)+(2*8)+(1*4)=97
97 % 10 = 7
So 43019-84-7 is a valid CAS Registry Number.

43019-84-7Relevant articles and documents

Synthesis of 1,3-Cycloalkadienes from Cycloalkenes: Unprecedented Reactivity of Oxoammonium Salts

Nagasawa, Shota,Sasano, Yusuke,Iwabuchi, Yoshiharu

supporting information, p. 13189 - 13194 (2016/10/30)

Few methods allow for the direct conversion of cycloalkenes into cycloalkadienes with high chemo- and regioselectivity. Herein, we report a convenient one-pot process for this transformation that involves the unprecedented N-preferential group transfer of N-oxoammonium salts to cycloalkenes, followed by Cope elimination, to afford cycloalkadienes at room temperature and pressure.

HEPATITIS C VIRUS INHIBITORS

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Page/Page column 61, (2012/03/09)

The present disclosure relates to compounds, compositions and methods for the treatment of hepatitis C virus (HCV) infection. Also disclosed are pharmaceutical compositions containing such compounds and methods for using these compounds in the treatment o

Ruthenium metathesis catalyst and method for producing olefin reaction product by metathesis reaction using the same

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, (2008/06/13)

The invention has an object of safely and simply preparing a large amount of a ruthenium metathesis catalyst, which is used as a catalyst for a carbon-carbon bond formation using, particularly, a metathesis reaction. The metathesis catalyst has the following complex composition (A) or (B). The composition (A) includes RuX12(arene)(PR1R2R3) and R4CHX22, R5C≡CH or R4CHX2and a reducing agent, wherein X1and X2respectively are a halogen atom; arene is a hydrocarbon having a benzene ring; R1, R2and R3, which may be the same or different, respectively are an alkyl group having 1-8 carbon atoms, a cycloalkyl group having 3-8 carbon atoms or an optionally substituted aryl group, wherein the substituent group is an alkyl group having 1-8 carbon atoms, an alkoxy group having 1-8 carbon atoms, an alkylamino group having 1-8 carbon atoms or a halogen atom; R4is an alkyl group which has 1-8 carbon atoms and may have an ether bond or an ester bond, an optionally subsituted aryl group, wherein the substituent group is a halogen atom or a hydroxyl group; or cycloalkyl group having 3-8 carbon atoms; and R5is an optionally substituted alkyl group which has 1-8 carbon atoms and may have an ether bond or an ester bond, wherein the substituent group is a halogen atom or a hydroxyl group, an aryl group or a cycloalkyl group having 3-8 carbon atoms. The composition B includes [RuX12(arene)]2, PR1R2R3, R5C≡CH or R4CHX2and a reducing agent, wherein X1, arene, R1, R2, R3, R4and R5are the same as defined above.

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