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1409941-00-9

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1409941-00-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1409941-00-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,0,9,9,4 and 1 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1409941-00:
(9*1)+(8*4)+(7*0)+(6*9)+(5*9)+(4*4)+(3*1)+(2*0)+(1*0)=159
159 % 10 = 9
So 1409941-00-9 is a valid CAS Registry Number.

1409941-00-9Downstream Products

1409941-00-9Relevant articles and documents

TfOH/Fe(OTf)3 Cocatalyzed Reaction of Arylallenes with Alcohols for Structurally Diverse Indene Derivatives

Liu, Congrong,Zhang, Haiyun,Ding, Lianghui,Liu, Juan

, p. 737 - 742 (2018/07/29)

The indene moiety is an important unit because of its presence in many chemical catalysts, functional materials and biologically relevant molecules. Herein, we report a facile reaction of arylallenes with benzylic or allylic alcohols through TfOH/Fe(OTf)3 cocatalyzed cleavage of sp3 carbon-oxygen. In the presence of 5 mol% TfOH and 5 mol% Fe(OTf)3, a range of arylallenes undergo carbocation initiated cyclization reaction with alkyl alcohols to give structurally diverse polysubstituted indenes in good to excellent yields. H2O is the sole byproduct that makes this transformation highly atom-economic and environmentally benign.

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