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73338-85-9

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73338-85-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 73338-85-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,3,3 and 8 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 73338-85:
(7*7)+(6*3)+(5*3)+(4*3)+(3*8)+(2*8)+(1*5)=139
139 % 10 = 9
So 73338-85-9 is a valid CAS Registry Number.

73338-85-9Downstream Products

73338-85-9Relevant articles and documents

Preparation method of benzofuran compound

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Paragraph 0185-0187; 0190, (2020/04/01)

The invention discloses a preparation method of a benzofuran compound. The preparation method comprises a step of subjecting a compound with a structure as shown in a formula (I) which is described inthe specification to a reacting in the presence of a ca

Synthesis of Benzo[ b]furans by Intramolecular C-O Bond Formation Using Iron and Copper Catalysis

Henry, Martyn C.,Sutherland, Andrew

supporting information, p. 2766 - 2770 (2020/03/30)

One-pot processes for the synthesis of benzo[b]furans from 1-aryl- or 1-alkylketones using nonprecious transition metal catalysts have been developed. Regioselective iron(III)-catalyzed halogenation of the aryl ring, followed by iron- or copper-catalyzed O-arylation allowed the synthesis of various structural analogues, including the benzo[b]furan-derived natural products corsifuran C, moracin F, and caleprunin B.

Synthetic method for moracin F using Sonogashira coupling reaction

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, (2017/10/20)

The present invention relates to a method for synthesizing a natural compound, moracin F having biological activity. The synthesis method of the present invention can efficiently synthesize the moracin F having biological activity by using Sonogashira cou

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