4443-71-4

Basic information

• Product Name: 2,3,4,8B-TETRAHYDRO-1AH-1-OXA-BENZO[A]CYCLOPROPA[C]CYCLOHEPTENE
• Synonyms: 2,3,4,8B-TETRAHYDRO-1AH-1-OXA-BENZO[A]CYCLOPROPA[C]CYCLOHEPTENE
• CAS NO: 4443-71-4
• Molecular Formula: C₁₁H₁₂O
• Molecular Weight: 160.21238
• Mol File: 4443-71-4.mol
• Article Data: 7

Chemical Properties

• Boiling Point: 70-72 °C(Press: 0.2 Torr)
• Appearance: /
• Density: 1.114±0.06 g/cm3(Predicted)
• CAS DataBase Reference: 2,3,4,8B-TETRAHYDRO-1AH-1-OXA-BENZO[A]CYCLOPROPA[C]CYCLOHEPTENE(CAS DataBase Reference)
• NIST Chemistry Reference: 2,3,4,8B-TETRAHYDRO-1AH-1-OXA-BENZO[A]CYCLOPROPA[C]CYCLOHEPTENE(4443-71-4)
• EPA Substance Registry System: 2,3,4,8B-TETRAHYDRO-1AH-1-OXA-BENZO[A]CYCLOPROPA[C]CYCLOHEPTENE(4443-71-4)

Safety Data

• Hazardous Substances Data: 4443-71-4(Hazardous Substances Data)

Usage

General Description

2,3,4,8B-TETRAHYDRO-1AH-1-OXA-BENZO[A]CYCLOPROPA[C]CYCLOHEPTENE, also known as Oxaazabenzonorcaradiene, is a chemical compound with a complex molecular structure. It is a cyclic compound containing a benzene ring fused with a cyclopropane and a cycloheptene ring, as well as an oxygen atom. 2,3,4,8B-TETRAHYDRO-1AH-1-OXA-BENZO[A]CYCLOPROPA[C]CYCLOHEPTENE is a part of the azabenzonorcaradiene family and is used in organic chemistry research as a versatile building block for the synthesis of various bioactive molecules and pharmaceuticals. Its unique structure and reactivity make it an important intermediate for the development of new chemical compounds with potential therapeutic applications.

Upstream product

• 35550-94-8 1-benzosuberol 
• 93-59-4 Perbenzoic acid 
• 7125-62-4 1,2-benzo-1,3-cycloheptadiene 
• 826-73-3 1-Benzosuberone 
• 88533-92-0 (+/-)-trans-6-Bromo-6,7,8,9-tetrahydro-5-hydroxy-5H-benzocycloheptene 

Downstream Products

• 57559-72-5 (+)-4-Amino-1,2-benzo-cyclohepten-(1) 
• 93664-06-3 1-methoxy-2-tosyloxy-benzosuberan 
• 54414-38-9 1,2-trans-1-amino-2-hydroxybenzosuberan 

Relevant articles and documents

Structural effects on the rates of formation and the stability of enols of cyclic benzyl ketones

The acid dissociation constants (KaK), the keto-enol equilibrium constants (KE), and the rate constants for enolization of the cyclic benzyl ketones 2-indanone (1a), 2-tetralone (3,4-dihydro-2(1H)-naphthalenone, 1b) and 2-benzosuberone (3,4-benzo-3-cyclohepten-1-one, 1c) were measured in aqueous solution at 25 °C. The rate constants for ketonization of the enols and the acid dissociation constants (KaE) for the corresponding enols were also determined. The presence of a conjugating phenyl group provides sufficient stabilization of the negative charge to enable these ketones to ionize in the pH range. pKaK values were determined from the rate constants for ionization of the ketones and for ketonization of the enolate ions. These values were confirmed by spectral titration. The acidity of the ketones decreases with increasing size; pKaK values are 12.2 (1a), 12.9 (1b), and 14.9 (1c). Similarly, the acid dissociation constants of the enols decrease with increasing ring size; pKaE's are 8.3 (2a), 9.2 (2b), and 10.0 (2c). Equilibrium constants for enolization also vary with ring size; pKE values are 3.8 (1a), 3.6 (1b), and 4.9 (1c).

HMG-CoA reductase inhibitors

Compounds are provided of the following structure are HMG CoA reductase inhibitors and thus are active in inhibiting cholesterol biosynthesis, modulating blood serum lipids, for example, lowering LDL cholesterol and/or increasing HDL cholesterol, and trea

Second-generation fluorous chiral (salen) manganese complexes

Sterically hindered chiral (salen)manganese complexes bearing long perfluoroalkyl substituents are synthesized and successfully employed as catalysts in the enantioselective (ee = 50-87%) epoxidation of alkenes under fluorous biphasic conditions.