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1217795-44-2

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1217795-44-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1217795-44-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,7,7,9 and 5 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1217795-44:
(9*1)+(8*2)+(7*1)+(6*7)+(5*7)+(4*9)+(3*5)+(2*4)+(1*4)=172
172 % 10 = 2
So 1217795-44-2 is a valid CAS Registry Number.

1217795-44-2Upstream product

1217795-44-2Downstream Products

1217795-44-2Relevant academic research and scientific papers

BF3-promoted synthesis of diarylhexahydrobenzo[f]isoquinoline

Chang, Meng-Yang,Lin, Chung-Han,Chen, Yeh-Long,Chang, Ching-Yao,Hsu, Ru-Ting

supporting information; experimental part, p. 1176 - 1179 (2010/05/18)

Chemical Equation Presented An easy and straightforward synthesis of 6,10b-diarylhexahydrobenzo[f]isoquinoline by the repeated treatment of boron trifluoride etherate (BF3·OEt2) is reported. The overall transformation from 4-arylpiperidin-3-one to benzo[f]isoqulnoline proceeds via ring contraction, chain elongation, and intramolecular electrophilic cyclization in moderate yields. It presents a novel rearrangement reaction catalyzed by boron trifluoride etherate and broadens the scope of application.

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