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2-Cyclopenten-1-one, 3-(triphenylsilyl)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

140840-86-4

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140840-86-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 140840-86-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,8,4 and 0 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 140840-86:
(8*1)+(7*4)+(6*0)+(5*8)+(4*4)+(3*0)+(2*8)+(1*6)=114
114 % 10 = 4
So 140840-86-4 is a valid CAS Registry Number.

140840-86-4Downstream Products

140840-86-4Relevant academic research and scientific papers

A Novel Rearrangement of 1-Akynylcyclopropanol to 2-Cyclopenten-1-one via Dicobalt Hexacarbonyl Complex

Iwasawa, Nobuharu

, p. 473 - 476 (1992)

Various 1-alkynylcyclopropanols are found to be converted to 3-substituted 2-cyclopenten-1-ones in good yields by heating their dicobalt hexacarbonyl complexes in refluxing tetrahydrofuran or dimethoxyethane.

Rearrangement of 1-(1-alkynyl)cyclopropanols to 2-cyclopentenones via their hexacarbonyldicobalt complexes. A new use of alkyne-CO2(CO)6 complexes in organic synthesis

Iwasawa, Nobuharu,Matsuo, Takeshi,Iwamoto, Mari,Ikeno, Taketo

, p. 3903 - 3914 (2007/10/03)

A novel rearrangement of 1-(1-alkynyl)cyclopropanols to 2-cyclopenten- 1-ones proceeded on complexation of their alkynyl part with octacarbonyldicobalt (Co2(CO8)). 1-(1-Alkynyl)cyclopropanols with a wide range of substituents on thei

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