840-90-4 Usage
Description
Bicyclo[2.2.1]hept-2-yl 4-methylbenzenesulfonate is a chemical compound characterized by a bicyclic ring structure with two fused cyclopropane rings and one cyclopentane ring, attached to a 4-methylbenzenesulfonate group. This unique and rigid molecular structure, featuring a derivative of benzenesulfonic acid with a methyl group on the benzene ring, endows it with specific reactivity and potential applications in various fields.
Uses
Used in Organic Synthesis:
Bicyclo[2.2.1]hept-2-yl 4-methylbenzenesulfonate serves as a valuable intermediate in organic synthesis, leveraging its distinct molecular structure to facilitate the creation of complex organic molecules and contribute to the advancement of chemical research.
Used in Pharmaceutical Industry:
In the pharmaceutical sector, bicyclo[2.2.1]hept-2-yl 4-methylbenzenesulfonate is utilized as a building block for the development of new drugs. Its unique structure allows it to be a key component in the synthesis of pharmaceutical compounds, potentially leading to innovative treatments and therapies.
Used as a Chemical Reactant:
Due to its reactivity, bicyclo[2.2.1]hept-2-yl 4-methylbenzenesulfonate can be employed in various chemical reactions, acting as a reactant to produce a range of different chemical products. This versatility makes it a useful tool in the field of chemistry for diverse applications.
Check Digit Verification of cas no
The CAS Registry Mumber 840-90-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,4 and 0 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 840-90:
(5*8)+(4*4)+(3*0)+(2*9)+(1*0)=74
74 % 10 = 4
So 840-90-4 is a valid CAS Registry Number.
840-90-4Relevant articles and documents
Cobalt-Catalyzed Silylcarbonylation of Unactivated Secondary Alkyl Tosylates at Low Pressure
Roque Pena, Joan E.,Alexanian, Erik J.
supporting information, p. 4413 - 4415 (2017/09/11)
A catalytic preparation of silyl enol ethers from unactivated secondary alkyl tosylates is reported. An inexpensive cobalt catalyst is used under mild conditions with low pressures of carbon monoxide. Nucleophilic, anionic cobalt carbonyls facilitate the catalytic activation of a range of alkyl tosylates. The silylcarbonylation offers a practical approach to synthetically valuable silyl enol ethers from simple starting materials.
Base-Promoted 1,2-Eliminations from endo-2-Bicycloheptyl Halides and Arenesulfonates
Bartsch, Richard A.,Lee, Jong Gun
, p. 5247 - 5252 (2007/10/02)
Base-solvent systems that provide clean bimolecular 1,2-elimination from endo-2-bicycloheptyl halides and arenesulfonates by suppressing competitive solvolysis and nortricyclene-forming 1,3-elimination are developed.The stereochemistries of elimination from exo-3-deuterio-endo-2-bromobicycloheptane (10) and exo-3-deuterio-endo-2-bicycloheptyl 2,4,6-triisopropylbenzenesulfonate (11) are assessed using these base-solvent systems.The competitive syn-endo and anti-exo-H elimination modes are found to be strongly influenced by base association.However, for dissociated alkoxide bases, the elimination stereochemistry is unaffected by changes in leaving group from halide to arenesulfonate, in base strength, and in base size.
