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9-methoxy-6a-(4-methoxyphenyl)-5,6a-dihydroisochromeno[3,4-b]chromene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

1620151-34-9

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1620151-34-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1620151-34-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,2,0,1,5 and 1 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1620151-34:
(9*1)+(8*6)+(7*2)+(6*0)+(5*1)+(4*5)+(3*1)+(2*3)+(1*4)=109
109 % 10 = 9
So 1620151-34-9 is a valid CAS Registry Number.

1620151-34-9Downstream Products

1620151-34-9Relevant academic research and scientific papers

A copper(ii) perchlorate-promoted tandem reaction of internal alkynol and salicyl N-tosylhydrazone: Direct access to isochromeno[3,4-b]chromene

Siyang, Hai Xiao,Wu, Xu Rui,Ji, Xiao Yue,Wu, Xin Yan,Liu, Pei Nian

, p. 8514 - 8517 (2014)

A copper(ii) perchlorate-promoted tandem reaction of internal alkynol and salicyl N-tosylhydrazone provides a novel, concise method for constructing isochromeno[3,4-b]chromene in 35-94% yields. The tandem reaction involves cycloisomerization, formal [4+2] cycloaddition and an elimination process. the Partner Organisations 2014.

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