14995-50-7 Usage
Description
7-(propan-2-ylidene)bicyclo[2.2.1]hept-2-ene, commonly known as norbornene, is a bicyclic hydrocarbon that serves as a versatile monomer in the production of various polymer materials. This colorless liquid with a mild, aromatic odor is highly flammable and is recognized for its unique bicyclic structure, which makes it a valuable building block in material science and industrial production for creating polymers with specific properties and characteristics.
Uses
Used in Polymer Production:
7-(propan-2-ylidene)bicyclo[2.2.1]hept-2-ene is used as a monomer for synthesizing high-performance plastics, adhesives, and elastomers. Its unique structure allows for the creation of polymers with tailored properties, making it an essential component in the development of advanced materials.
Used in Chemical Intermediates:
In the pharmaceutical industry, 7-(propan-2-ylidene)bicyclo[2.2.1]hept-2-ene is used as a chemical intermediate for the production of various organic compounds. Its reactivity and structural features facilitate the synthesis of complex molecules, contributing to the development of new drugs and therapeutic agents.
Used in Material Science Research:
7-(propan-2-ylidene)bicyclo[2.2.1]hept-2-ene is utilized in material science research to explore new methods of polymerization and to develop novel materials with improved mechanical, thermal, and chemical properties. Its role in this field is crucial for advancing the understanding of polymer chemistry and for creating innovative materials for various applications.
Check Digit Verification of cas no
The CAS Registry Mumber 14995-50-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,4,9,9 and 5 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 14995-50:
(7*1)+(6*4)+(5*9)+(4*9)+(3*5)+(2*5)+(1*0)=137
137 % 10 = 7
So 14995-50-7 is a valid CAS Registry Number.
14995-50-7Relevant articles and documents
Electronic Control of Stereoselectivity. 8. The Stereochemical Course of Electrophilic Additions to Aryl-Substituted 9-Isopropylidenebenzonorbornenes
Paquette, Leo A.,Hertel, Larry W.,Gleiter, Rolf,Boehm, Michael C.,Beno, Mark A.,Christoph, Gary G.
, p. 7106 - 7121 (1981)
A series of aryl-substituted 9-isopropylidenebenzonorbornenes (1-4) and the parent 7-isopropylidenenorbornene (5) have been synthesized, and the stereochemistry of addition of numerous electrophiles to their exocyclic double bond has been determined.For assistance in interpreting the results, photoelectron spectroscopic investigations and extensive ZDO and MNDO/3 calculations were also undertaken.When weak electophiles reagents such as singlet oxygen, m-chloroperbenzoic acid, N-bromosuccinimide, N-methyltriazolinedione, and tert-butyl hypochlorite were studied, all gave product distributions which greatly favored anti addition when the aryl ring was unsubstituted or substituted by a pair of methoxyl groups.The placement of chlorine or fluorine groups on the aromatic ring was accompanied by a substantial enhancement in the relative amount of syn product.For strong electrophiles such as protonated tert-butyl hypochlorite, dichlorocarbene, the acetylinium cation, and protonated formaldehyde, syn attack was greatly favored or dominated exclusively.These marked crossovers in syn/anti stereoselection, which serve as a convenient tool with which to assess relative electrophilicity, may be explained in terms of the involvment of bridged or open ion pathways.Where bridged ions develop (weak electrophiles), long-range homoaromatic charge delocalization to the aromatic ring develops, with the result that anti attack becomes kinetically dominant.When powerfully electrophilic species are involved, this phenomenon is not important and transient aryl complex formation appears controlling.
