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33414-84-5

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33414-84-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 33414-84-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,4,1 and 4 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 33414-84:
(7*3)+(6*3)+(5*4)+(4*1)+(3*4)+(2*8)+(1*4)=95
95 % 10 = 5
So 33414-84-5 is a valid CAS Registry Number.

33414-84-5Relevant articles and documents

Palladium(II)/Lewis acid cocatalyzed oxidative annulation of 2-alkenylanilines and propargylic esters: An access to benzo[ b]azepines

Qiao, Hong,Zhang, Shengjun,Li, Kangkang,Cao, Zhengqiang,Zeng, Fanlong

, p. 10843 - 10851 (2019/09/12)

An attractive approach to valuable yet synthetically challenging benzo[b]azepines was established via palladium(II)/Lewis acid cocatalyzed oxidative [5 + 2] annulation of readily available 2-alkenylanilines and propargylic esters. The protocol features mild reaction conditions and good functional group tolerance, constituting an array of benzo[b]azepines in yields of 30-75%.

Domino gold-catalyzed rearrangement and fluorination of propargyl acetates

De Haro, Teresa,Nevado, Cristina

supporting information; experimental part, p. 248 - 249 (2011/02/23)

A combination of IPrAuNTf2 as catalyst in the presence of Selectfluor has been successfully used for the high yielding synthesis of α-fluoroenones via 1,3-acyloxy rearrangement of propargyl acetates followed by Csp2-F bond formation,

Gold-catalyzed efficient preparation of linear α-haloenones from propargylic acetates

Yu, Meng,Zhang, Guozhu,Zhang, Liming

experimental part, p. 1846 - 1855 (2009/07/04)

Versatile linear α-iodo- and α-bromoenones are prepared efficiently from readily accessible propargylic acetates using 2 mol % of Au(PPh3)NTf2. This reaction is easy to execute and has broad substrate scope. Good to excellent Z-selectivities are observed in the cases of propargylic acetates derived from aliphatic aldehydes.

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