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1-Cyclopentene-1-carboxylic acid, 2-methyl- (6CI,9CI) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

67209-77-2

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67209-77-2 Usage

Synthesis Reference(s)

The Journal of Organic Chemistry, 49, p. 2049, 1984 DOI: 10.1021/jo00185a054

Check Digit Verification of cas no

The CAS Registry Mumber 67209-77-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,2,0 and 9 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 67209-77:
(7*6)+(6*7)+(5*2)+(4*0)+(3*9)+(2*7)+(1*7)=142
142 % 10 = 2
So 67209-77-2 is a valid CAS Registry Number.
InChI:InChI=1/C7H10O2/c1-5-3-2-4-6(5)7(8)9/h2-4H2,1H3,(H,8,9)

67209-77-2SDS

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-methylcyclopentene-1-carboxylic acid

1.2 Other means of identification

Product number -
Other names 2-Methylcyclopent-1-ene carboxylic acid

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:67209-77-2 SDS

67209-77-2Relevant academic research and scientific papers

Formal total synthesis of (±)-trichodiene via Claisen rearrangement and Robinson annulation

Jung, Jae-Chul,Jung, Young-Jo,Park, Oee-Sook

experimental part, p. 293 - 297 (2009/01/31)

A facile formal total synthesis of (±)-trichodiene was achieved by employing Claisen rearrangement and Robinson annulation as synthetic key strategies.

Asymmetric synthesis of (-)-trichodiene. Generation of vicinal stereogenic quaternary centers via the thio-Claisen rearrangement

Lemieux, René M.,Meyers

, p. 5453 - 5457 (2007/10/03)

The use of chiral bicyclic lactams, in their thiocarbonyl form 9, has been shown to serve as important intermediates for producing α-quaternary alkyl derivatives 8, which were readily transformed into the title compound (-)-1. The reversibility of the thi

Stereoselective construction of the dicyelopenta[a,d]cyclooctene core of the ceroplastin sesterterpenes by way of the anionic oxy-cope rearrangement

Paquette, Leo A.,Liang, Shaowo,Wang, Hui-Ling

, p. 3268 - 3279 (2007/10/03)

Bicyclo[3.2.1]oetanediones such as 9, which are readily available by double carbonylation of (1,3-cyclohexadiene)iron tricarbonyl complexes according to Eilbracht, are amenable to regiospecific methylenation under Wittig conditions. Reduction of 10 with copper hydride leads to 11, which can be resolved by application of Johnson's sulfoximine technology and oxidized to give the enantiopure antipodes of 10. Variously substituted cyclopentenyl anions undergo 1,2-addition to 10, providing carbinols which are capable of anionic oxy-Cope rearrangement via chair transition states. These structural reorganizations are fully stereocontrolled and lead directly to functionalized dicyclopenta[a,d]cyclooctenes. When 11 is treated analogously, only [1,3] sigmatropy is observed and inversion of stereochemistry at the migrating carbon prevails. Both processes exhibit impressive scaffolding powers and are characterized by brevity.

Studies in Cephalotaxus Alkaloids. Stereospecific Total Synthesis of Homoharringtonine

Hiranuma, Sayoko,Shibata, Misako,Hudlicky, Tomas

, p. 5321 - 5326 (2007/10/02)

The alkaloid ester homoharringtonine (2) was synthesized stereospecifically via the Reformatsky reaction of methyl α-bromoacetate with cephalotaxyl pyruvate (16) obtained by esterification of cephalotaxine with acid chloride derived from 15.The preparations of 2 and its unsaturated derivative 13 are described in detail.Possible explanations of the steric requirements in the esterification of cephalotaxine and of the steric outcome of the Reformatsky reaction leading to 2 and 13 are advanced.

α-OXOKETENE DITHIOACETALS: VERSATILE SUBSTRATES FOR 1,3-CARBONYL TRANSPOSITIONS

Dieter, R. Karl,Jenkitkasemwong, Yawares

, p. 3747 - 3750 (2007/10/02)

A two step procedure for the conversion of α-oxoketene dithioacetals to β-substituted α,β-unsaturated thioesters or acids is described.The overall transformation represents a 1,3-carbonyl transposition in which the original ketone carbonyl emerges as the carbonyl of an acid or thioester.The resulting thioesters and acids constitute versatile acylating reagents in accord with established procedures.

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