1889-99-2 Usage
Uses
Used in Organic Synthesis:
3-bromo-2-hydroxy-4,4,5,5-tetramethylcyclopent-2-en-1-one is used as a key intermediate in organic synthesis for the production of various chemical compounds. Its unique structure and reactivity make it a valuable component in the synthesis of complex organic molecules.
Used in Chemical Research:
Due to its distinctive properties, 3-bromo-2-hydroxy-4,4,5,5-tetramethylcyclopent-2-en-1-one is utilized in chemical research to explore its reactivity and potential applications in the development of new chemical processes and reactions.
Used in Pharmaceutical Industry:
3-bromo-2-hydroxy-4,4,5,5-tetramethylcyclopent-2-en-1-one is used as an intermediate in the manufacturing of pharmaceuticals. Its versatile properties allow it to be incorporated into the synthesis of various drug molecules, contributing to the development of new medications.
Used in Agrochemical Industry:
In the agrochemical industry, 3-bromo-2-hydroxy-4,4,5,5-tetramethylcyclopent-2-en-1-one is employed as an intermediate for the production of agrochemicals, such as pesticides and herbicides. Its unique structure and reactivity enable the development of effective and targeted agrochemical products.
Check Digit Verification of cas no
The CAS Registry Mumber 1889-99-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,8,8 and 9 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1889-99:
(6*1)+(5*8)+(4*8)+(3*9)+(2*9)+(1*9)=132
132 % 10 = 2
So 1889-99-2 is a valid CAS Registry Number.
InChI:InChI=1/C9H13BrO2/c1-8(2)6(10)5(11)7(12)9(8,3)4/h11H,1-4H3
1889-99-2Relevant academic research and scientific papers
Ene Reactions of Indane-1,2,3-trione (a Super-enophile) and Related Vicinal Tricarbonyl Systems
Gill, G. Bryon,Idris, Muhammad S. Hj.,Kirollos, Kirollos S.
, p. 2355 - 2366 (2007/10/02)
Indane-1,2,3-trione 1 is conveniently prepared in quantitative yield by the azeotropic drying of ninhydrin 2 using chlorobenzene as solvent.The central C=O group of the trione is extremely electrophilic and ene addition occurs at this site with a wide range of alkenes and with terminal alkynes in aprotic solvents at moderate temperatures (70-130 deg C).The reactivity of trione 1 is somewhat attenuated by the solvent, and the ene additions are consistently faster in chloroform than in tetrahydrofuran.Stereoselectivity, when relevant, appears largely to be dictated bysteric factors.Regiochemical control can be exercised if the ene contains two reaction sites.Isoprene and 2,4-dimethylpenta-1,3-diene, however, react by Diels-Alder rather than by ene addition; the adducts are the expected regioisomers 18 and 20, respectively.Attempts to catalyse the ene reactions with Lewis acids were unsuccessful.The analogous ene reactions of 4,4,5,5-tetramethyl-cyclopentane-1,2,3-trione 44, 4,4,6,6-tetramethylcyclohexane-1,2,3-trione 45, and 2,2-dimethyl-1,3-dioxane-4,5,6-trione ('oxo-Meldrum's acid') 46 were also briefly investigated.
