651735-60-3

Usage

Uses

8-Bromo-1-tetralone is a useful halogenated organic reagent in various syntheses.

InChI:InChI=1/C10H9BrO/c11-8-5-1-3-7-4-2-6-9(12)10(7)8/h1,3,5H,2,4,6H2

Upstream product

• 210346-49-9 8-aminotetralone 
• 838821-08-2 8-bromo-1,2,3,4-tetrahydro-1-naphthalenol 
• 110139-15-6 N-(8-oxo-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide 
• 529-34-0 3,4-dihydronaphthalene-1(2H)-one 
• 104354-39-4 3,4-dihydro-naphthalen-1(2H)-one oxime O-methyl ether 
• 22009-40-1 7-amino-1-tetralone 
• 40353-34-2 7-nitro-3,4-dihydro-2H-naphthalen-1-one 
• 214697-98-0 7-amino-8-bromo-3,4-dihydronaphthalen-1(2H)-one 
• 2217-41-6 1-amino-5,6,7,8-tetrahydronaphthalene 
• 6272-18-0 N-(5,6,7,8-tetrahydronaphthalen-1-yl)acetamide 
• 529-33-9 1,2,3,4-Tetrahydro-1-naphthol 

Downstream Products

• 838821-08-2 8-bromo-1,2,3,4-tetrahydro-1-naphthalenol 

Relevant academic research and scientific papers

METHODS FOR MAKING QUINOLINYLDIAMINES

The present disclosure provides methods for making quinolinyldiamine products from quinolinyl starting materials. In addition, the quinolinyldiamines can be used as ligands or ligand precursors for catalysts, e.g. for use in olefin polymerization.

Metal complexes, organic electroluminescent material, the organic electroluminescent element, electronic equipment (by machine translation)

The invention relates to metal complexes, comprising the metal complex of the organic electroluminescent material, organic light-emitting element and the electroluminescent device. The metal complex of the present invention of the formula M (LA )x (LB )y (Lc )z ; The invention comprising metal complexes of the light-emitting electroluminescent element is dark red, high luminous efficiency, at the same time good thermal stability of the material, the material is easy preparation, is easy to be purified, is used as an organic electroluminescent element is the ideal choice of light-emitting material. (by machine translation)

QUINOLINYLDIAMIDO TRANSITION METAL COMPLEXES, PRODUCTION AND USE THEREOF

Quinolinyldiamido transition metal complexes are disclosed for use in alkene polymerization to produce multimodal polyolefins.

PYRIDYLDIAMIDO TRANSITION METAL COMPLEXES, PRODUCTION AND USE THEREOF

Pyridyldiamido transition metal complexes are disclosed for use in alkene polymerization.

Mechanistic studies of copper(I)-catalyzed 1,3-halogen migration

An ongoing challenge in modern catalysis is to identify and understand new modes of reactivity promoted by earth-abundant and inexpensive first-row transition metals. Herein, we report a mechanistic study of an unusual copper(I)-catalyzed 1,3-migration of 2-bromostyrenes that reincorporates the bromine activating group into the final product with concomitant borylation of the aryl halide bond. A combination of experimental and computational studies indicated this reaction does not involve any oxidation state changes at copper; rather, migration occurs through a series of formal sigmatropic shifts. Insight provided from these studies will be used to expand the utility of aryl copper species in synthesis and develop new ligands for enantioselective copper-catalyzed halogenation.

Pyridyldiamido Transition Metal Complexes, Production and Use Thereof

Pyridyldiamido transition metal complexes are disclosed for use in alkene polymerization.

Complementary helicity interchange of optically switchable supramolecular-enantiomeric helicenes with (-)-gel-sol-(+)-gel transition ternary logic

A gallamide-containing pseudoenantiomeric helicene pair bearing a (10R,11R)-dimethoxymethyldibenzosuberane core can self-assemble by intermolecular amide H-bonding and π-π stacking into bundled helical fibers with helical tunnels of complementary helicity in CH2Cl 2. The helicenes undergo excellent complementary photoswitchings of ternary logic at 280, 318, and 343 nm through (-)-gel-sol-(+)-gel interconversion.

Preparation of phenalenes and hydronaphthacenes through tandem alkyne Fischer-carbene complex coupling and inter- or intra-molecular Diels-Alder reactions

The rapid construction of phenalenes through the reaction of 8-alkynyltetralones with Fischer-carbene complexes followed by either an inter- or intra-molecular Diels-Alder reaction is presented. As a showcase of the synthetic utility of this process, the rapid construction of polycyclic ring systems containing the tetracycline core has been demonstrated through an iterative application of this reaction sequence.

Synthesis of 1-aryl-1H-indazoles via palladium-catalyzed intramolecular amination of aryl halides

(Chemical Equation Presented) Palladium-catalyzed cyclization of arylhydrazones of 2-bromoaldehydes and 2-bromoacetophenones to give 1-aryl-1H-indazoles has been studied in detail. The cyclization of arylhydrazone of 2-bromobenzaldehydes can be performed with good to high yields using Pd(dba)2 and chelating phosphines, of which the most effective are rac-BINAP, DPEphos, and dppf, in the presence of Cs2CO3 or K3PO4 as a base. Electron-rich, bulky ligands commonly employed for intermolecular amination such as PtBu3 and o-PhC6H4PtBu2 were shown to be ineffective for cyclization and to lead instead to extensive oligomerization and tarring. The method developed is applicable for preparation of a wide scope of indazoles bearing electron-donating or electron-withdrawing substituents, among them, unprotected carboxyl, as well as various indazole heteroanalogues. The cyclization of arylhydrazones of less reactive halides such as 2-chlorobenzaldehyde, as well as 2-bromoacetophenone and bromotetralone, has been achieved. The purity of the starting hydrazone has been shown to be a critical parameter, as various impurities inhibit the cyclization.

A Convenient Synthesis of 7-Halo-1-indanones and 8-Halo-1-tetralones

A regioselective oxidation of N-indan-4-yl-acetamide or N-(5,6,7,8-tetrahydronaphthalen-1-yl)acetamide with potassium permanganate followed by acidic hydrolysis gave 7-aminoindan-1-one or 8-aminotetral-1-one in good yield. The amino ketones were converted to the corresponding 7-haloindanone or the 8-halotetralone. Another method to prepare 7-haloindan-1-ones was completed by a cyclization of 3-chloro-1-(2-halophenyl)propan-1-one under Friedel-Crafts conditions to produce the product in gram quantity.