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5-Butyl-2-methyl-cyclopenten-2-on is a cyclic organic compound characterized by a five-membered ring with a double bond at the 2-position. It features a butyl group attached to the 5th carbon and a methyl group at the 2nd carbon. 5-Butyl-2-methyl-cyclopenten-(2)-on is a type of cycloalkenone, which is a class of organic compounds that contain a carbonyl group (C=O) within a cyclic structure. Cycloalkenones are known for their diverse range of applications, including in the synthesis of pharmaceuticals, fragrances, and other specialty chemicals. The specific structure of 5-butyl-2-methyl-cyclopenten-2-on suggests it may have unique chemical properties and reactivity due to the presence of the butyl and methyl substituents, which can influence its stability, solubility, and potential uses in chemical reactions.

5739-15-1

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5739-15-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5739-15-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,7,3 and 9 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 5739-15:
(6*5)+(5*7)+(4*3)+(3*9)+(2*1)+(1*5)=111
111 % 10 = 1
So 5739-15-1 is a valid CAS Registry Number.

5739-15-1Upstream product

5739-15-1Downstream Products

5739-15-1Relevant academic research and scientific papers

Fluorine-directed Nazarov cyclizations 2: Regioselective synthesis of 5-trifluoromethyl-2-Cyclopentenones

Ichikawa, Junji,Fujiwara, Masaki,Okauchi, Tatsuo,Minami, Toni

, p. 927 - 929 (2007/10/03)

1-Trifluoromethylvinyl vinyl ketones are treated with trimethylsilyl trifluoromethanesulfonate in CH2Cl2-1,1,1,3,3,3-hexafluoro-2-propanol to afford 5-trifluoromethyl-2-cyclopentenones. Both acyclic and cyclic substrates furnish the corresponding cyclized products in good to excellent yields with defined placement of the endocyclic double bond due to the strong electronic effect exerted by the trifluoromethyl group.

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