122856-40-0

Upstream product

• 112-29-8 1-bromo dodecane 
• 95-50-1 1,2-dichloro-benzene 
• 17049-50-2 n-decyl magnesium bromide 

Downstream Products

• 180521-99-7 1-bromo-3,4-didecylbenzene 
• 953792-41-1 1,2-Bis-decyl-4,5-bis-trimethylsilanylethynyl-benzene 
• 155259-31-7 1,2-Bis-decyl-4,5-diethynyl-benzene 
• 766548-96-3 4-[4,5-bis-decyl-2-(3-hydroxy-3-methyl-but-1-ynyl)-phenyl]-2-methyl-but-3-yn-2-ol 
• 766548-95-2 4-(2-bromo-4,5-bis-decyl-phenyl)-2-methyl-but-3-yn-2-ol 
• 122856-43-3 4,5-dibromo-1,2-didecylbenzene 
• 191231-92-2 4,5-didecyl-1,2-diiodobenzene 

Relevant academic research and scientific papers

Catalytic Systems for Production of 1-Hexene by Selective Ethylene Trimerization

Abstract: New chromium complexes with diphosphine ligands have been obtained by the reaction of chromium(III) hexahydrate and diphosphines in acetone. The structure of chromium(III) complex 4 containing water molecule and 1,2-bis(diphenylphosphino)benzene as ligands and that of two chromium(III) complexes (12 and 13) with 1,2-bis(diphenylphosphino)benzene ligands containing alkenyl substituents in the ortho-position of one of the phenyl groups at the phosphorous atom have been determined using X-ray diffraction analysis. The catalytic properties of the obtained complexes in the composition of catalytic systems for ethylene trimerization have been studied. It has been shown that the obtained series of catalytic systems manifests high activity in the process of ethylene trimerization to 1-hexene, with the process selectivity exceeding 94%. The highest value of productivity amongst known selective catalytic systems for trimerization was achieved using a chromium complex 13 bearing the 2-methylprop-1-enyl group at the ortho-position of one of the phenyl groups. The influence of temperature, pressure, the nature of the solvent and the composition of the catalytic system on the parameters of the process of ethylene trimerization to form 1-hexene has been determined.

Synthesis of oleophilic electron-rich phenylhydrazines

Phenylhydrazines 1 substituted with two or three long-chain alkyl, alkoxy or alkylsulfanyl groups were successfully prepared by acid-induced removal of the Boc group in hydrazides 2. The reaction is carried out with 5 equivalents of TfOH in CF3

Convenient synthesis and photophysical properties of tetrabenzopentakisdehydro[12]annuleno[12]annulene

A convenient synthesis of tetrabenzopentakisdehydro-[12]annuleno[12] annulene 2c with substantial solubility was achieved by double cyclization of tetrabromotolan 3 with o-diethynylbenzene 4.

Synthesis of Alkyl- and Alkoxy-Substituted Benzils and Oxidative Coupling to Tetraalkoxyphenanthrene-9,10-diones

Intermolecular Friedel-Crafts acylation of various substituted alkyl- or alkoxybenzenes with oxalyl chloride using carbon disulfide as solvent gave rise to the benzils 1a-k.Subsequent intramolecular oxidative coupling with either thallium(III) oxide/trifluoroacetic acid or vanadium(V) oxyfluoride/boron trifluoride diethyl etherate resulted in the corresponding phenanthrene-9,10-diones 2a-d.It has been shown that oxygen functionalities at the 3,3',4, and 4'positions are necessary for coupling to occur.These substituted benzils and phenanthrene-9,10-diones constitute precursors for ligands in the field of discotic metallomesogens or polymeric mesogens.

Synthesis of Diacetylene Macrocycles Derived from 1,2-Diethynylbenzene Derivatives: Structure and Reactivity of the Strained Cyclic Dimer

Diacetylene macrocycles 2-4 (n=1-3) (R=H, C4H9, C6H13, C10H21, C12H25, OC10H21) have been prepared from the oxidative coupling of 1,2-diethynylbenzene derivatives.These compounds can be produced in useful quantities and are of interest as precursors to novel conjugated organic polymers.The reported results indicate that when the R groups are large the dimeric macrocycle (n=1) can be prepared in as high as 74percent yield from the corresponding 1,2-diethynylbenzene in a one-step procedure.An alternate multistep procedure was found to produce the tetrameric macrocycle (n=3,R=C6H13) in 45percent yield.The highly strained dimeric macrocycle was characterized by an X-ray structure and was found to be very reactive.The dimers undergo a rapid very exothermic polymerization at 100-125 deg C, indicative of a chain reaction.Reaction of the dimeric macrocycles with iodine results in intramolecular cyclization and a new 20? electron tetraiodide fused ring system.Reaction of the tetraiodide with oxygen produces a related compound in which two of the iodides have been converted to ketones.