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207352-09-8

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207352-09-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 207352-09-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,7,3,5 and 2 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 207352-09:
(8*2)+(7*0)+(6*7)+(5*3)+(4*5)+(3*2)+(2*0)+(1*9)=108
108 % 10 = 8
So 207352-09-8 is a valid CAS Registry Number.

207352-09-8Downstream Products

207352-09-8Relevant articles and documents

Nucleophilic Migratory Cyclopropenation of Activated Alkynes: A Nonmetal Approach to Unbiased Cyclopropenes

Tan, Pengwei,Wang, Haoran,Wang, Sunewang R.

, p. 2590 - 2594 (2021)

An unprecedented reductive [2 + 1] annulation of α-keto esters with alkynones mediated by P(NMe2)3 is described. Although this nonmetal cyclopropenation is a nucleophilic process, attributed to the ester migration via a formal [2 + 2] cycloaddition reaction of Kukhtin-Ramirez adducts and alkynones followed by a fragmentation, cyclopropenes with an unbiased alkene scaffold are formed in good to excellent yields, thus providing a promising complementarity to electrophilic metal-catalyzed cyclopropenation.

Direct synthesis of highly substituted furans from acyloins and active methylene compounds catalyzed by bismuth triflate

Komeyama, Kimihiro,Ohama, Yuuki,Takaki, Ken

supporting information; experimental part, p. 1103 - 1104 (2011/11/06)

Bi(OTf)3 was found to be an effective catalyst for a tandem condensation/cyclization of acyloins and β-diketones or β-keto esters to afford highly substituted furans in good yields.

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