15910-53-9Relevant academic research and scientific papers
Biphenol compound as well as preparation method and application thereof
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Paragraph 0106; 0111-0114, (2020/10/20)
The invention discloses a biphenyl triphenol compound. The compound has a structure as shown in the following formula (I). The biphenyl triphenol compound provided by the invention is an important intermediate for synthesizing a tridentate phosphite ligand of a biphenyl frame, and plays an important role in hydroformylation reaction and industrial application thereof. The invention also provides preparation methods of various biphenol compounds, including an oxidative coupling method; the oxidative coupling method provided by the invention can be used for synthesizing the biphenol compounds inone step; and the method has the advantages of cheap and easily available catalyst, simple operation, good yield, low cost and large-scale preparation.
Biphenyltridentate phosphite ligand and preparation method and application thereof (by machine translation)
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Paragraph 0096; 0101-0104, (2020/11/10)
The invention discloses a biphenyl tridentate phosphite ligand and a preparation method and application thereof, wherein the biphenyltridentate phosphite ligand has the structure shown in a formula (I), and the ligand has extremely stable water oxygen. The catalyst is not easy to decompose and has good catalytic activity. (by machine translation)
Preparation of novel biphenyl tetradentate phosphite ligand and application of novel biphenyl tetradentate phosphite ligand in mixed/etherified C4 hydroformylation reaction
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Paragraph 0030-0033, (2020/11/23)
The invention discloses a preparation method of a novel biphenyl tetradentate phosphite ligand 2, 2 ', 6, 6'-tetra [(1, 1 'biphenyl-2, 2'-diyl) phosphite]-3, 3 ', 5, 5'- tetra-tert-butyl -1, 1- 'biphenyl and derivatives thereof. The novel biphenyl tetradentate phosphite ligand has a structure as shown in general formula I, wherein a substituent R in the general formula I can be a cyclic phosphinestructure. Meanwhile, the invention discloses an application in a mixed/etherified C4 (butene) hydroformylation reaction system taking a novel biphenyl tetradentate phosphite ligand as a ligand.
NEW COMPOUNDS I
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Page/Page column 23, (2008/06/13)
A compound of formula (I), or pharmaceutically acceptable salts thereof wherein X is selected from hydrogen, halo, -CN, -CON2, -CON(C1-6alkyl)H, -CON(C1-6alkyl)2 and heterocyclic groups; R1
Rhenium complexes-catalyzed alkylation of arenes with alkyl halides
Nishiyama,Kakushou,Sonoda
, p. 2779 - 2782 (2007/10/03)
Rhenium complexes have been shown to catalyze the alkylation of arenes with alkyl halides. When arenes were reacted with an alkyl chloride in the presence of a catalytic amount of rhenium complexes, such as bromopentacarbonylrhenium(I) [ReBr(CO)5], tricarbonylcyclopentadienylrhenium(I) [Re(C5H5)(CO)3] and decacarbonyldirhenium [Re2(CO)10], alkylation of the arenes proceeded under mild conditions to give a mixture of mono- and dialkyl substituted arenes in moderate-to-good yields.
