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2,3-Dimethyl-5-methylene-2-cyclopenten-1-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

52775-77-6

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52775-77-6 Usage

Synthesis Reference(s)

Journal of the American Chemical Society, 108, p. 3438, 1986 DOI: 10.1021/ja00272a045Tetrahedron Letters, 26, p. 6397, 1985 DOI: 10.1016/S0040-4039(01)84608-6

Check Digit Verification of cas no

The CAS Registry Mumber 52775-77-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,7,7 and 5 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 52775-77:
(7*5)+(6*2)+(5*7)+(4*7)+(3*5)+(2*7)+(1*7)=146
146 % 10 = 6
So 52775-77-6 is a valid CAS Registry Number.
InChI:InChI=1/C8H10O/c1-5-4-6(2)8(9)7(5)3/h2,4H2,1,3H3

52775-77-6SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name 2,3-dimethyl-5-methylidenecyclopent-2-en-1-one

1.2 Other means of identification

Product number -
Other names Methylenomycin B

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:52775-77-6 SDS

52775-77-6Downstream Products

52775-77-6Relevant academic research and scientific papers

The Gas-Flow Thermolysis of 1-Isobutenyl Alkynyl and 2-Methylphenyl Alkynyl Ketones. Synthesis of Methylenomycin B

Koller, Manuel,Karpf, Martin,Dreiding, Andre S.

, p. 560 - 579 (2007/10/02)

The gas-flow thermolysis of 1-isobutenyl alkynyl or 2-methyphenyl alkynyl ketones were found to lead to phenols and cyclopentenones or to naphthols and indanones, respectively.These conversions involve two cyclization processes so far unknown with α-alkynones; they are interpreted as intramolecular additions of an allylic or a benzylic C,H bond to a triple bond which may occur in two directions.In addition, the cyclopentenones formed by the α-alkynone cyclization, a known carbene process yielding 5-rings, were also found.The available evidence ruled out a carbene process yielding 6-rings.The addition process yielding 5-rings was applied to a short (but low yield) synthesis of methylenomycin B.

THE FLOW THERMOLYSES OF 1-ISOBUTENYL ALKYNYL- AND 2-METHYLPHENYL ALKYNYL KETONES. SYNTHESIS OF METHYLENOMYCIN B

Koller, Manuel,Karpf, Martin,Dreiding, Andre S.

, p. 19 - 22 (2007/10/02)

The gas flow thermolyses of 1-isobutenyl alkynyl and 2-methylphenyl alkynyl ketones were found to lead to phenols and to cyclopentenones.The results are explained by a 5-ring carbene process (the known α-alkynone cyclization) and a 6-ring as well as a 5-ring addition process.The latter two (novel) processes are thought to be intramolecular "C-H to CC additions" in two directions.The 5-ring addition process was used in a short (but low yield) synthesis of methylenomycin B.

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