71215-52-6 Usage
Uses
Used in Organic Synthesis:
2,4-Cyclopentadiene-1-carboxylic acid, 1,2-dimethyl-, methyl ester (9CI) is used as a reagent in organic chemistry reactions for the synthesis of various compounds. Its unique structure allows it to participate in a range of chemical reactions, making it a valuable component in the creation of new molecules.
Used in Pharmaceutical Production:
In the pharmaceutical industry, 2,4-Cyclopentadiene-1-carboxylic acid, 1,2-dimethyl-, methyl ester (9CI) is used as an intermediate in the production of various drugs. Its role in the synthesis process is crucial for the development of new medications, contributing to the advancement of healthcare.
Used in Agrochemical Production:
Similarly, in the agrochemical sector, 2,4-Cyclopentadiene-1-carboxylic acid, 1,2-dimethyl-, methyl ester (9CI) is employed as an intermediate in the synthesis of different agrochemicals. Its application in this field helps in the development of new products for agricultural use, such as pesticides and herbicides.
Safety Precautions:
It is important to handle and store 2,4-Cyclopentadiene-1-carboxylic acid, 1,2-dimethyl-, methyl ester (9CI) with care, as it can be hazardous if not properly managed. Its flammability requires special attention to safety measures during transportation, storage, and use in chemical reactions.
Check Digit Verification of cas no
The CAS Registry Mumber 71215-52-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,2,1 and 5 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 71215-52:
(7*7)+(6*1)+(5*2)+(4*1)+(3*5)+(2*5)+(1*2)=96
96 % 10 = 6
So 71215-52-6 is a valid CAS Registry Number.
71215-52-6Relevant academic research and scientific papers
Synthesis and Rearrangement of Substituted Bicyclopent-2-enes. A Thermal "Walk"-Rearrangement
Klaerner, Frank-Gerrit,Adamsky, Friedhelm
, p. 299 - 322 (2007/10/02)
The synthesis and the thermal behaviour of methyl 5-methyl-, 1,5-, and 2,5-dimethylbicyclopent-2-ene-5-carboxylates 3a,b, 4a,b, 5a,b, as well as of 1,5- and 2,5-dimethylbicyclopent-2-ene-5-carbonitriles 6a, 7a,b are reported.The "walk"-rearrangement which is degenerate in the cases of 3a,b could be detected experimentally with the aid of the dimethyl derivatives 4a,b, 5a,b, 6a, and 7a,b.Electrocyclic ring opening to the correspondingly substituted 1,3-cyclopentadienes competes with the "walk"-rearrangements.Already at 0 deg C the "walk"-rearrangements 4a -> 5a, 4b -> 5b, and 6a -> 7a proceed stereospecifically with inversion at the migrating carbon atom C-5 as postulated by Woodward and Hoffmann (0 deg C: ΔG*= 21.7, 24.8, and 21.9 kcal/mol).We assume that the surprisingly low activation barriers do not only result from the resonance stabilization of an aromatic transition state but largely from the anomalously high ground-state enthalpy of the bicyclopentene system.
