983-79-9Relevant articles and documents
Synthesis of 3-(2-Oxo-2,3-dihydrobenzo[b]furan-3-ylidenehydrazono)-2,3- dihydrobenzo[b]furan-2-one
Pulina,Zalesov,Kataev
, p. 861 - 863 (2007)
Reactions of benzophenone and fluoren-9-one hydrazones with (2-hydroxyphenyl)oxoacetic acid gave [carboxy(2-hydroxyphenyl) methylidenehydrazono](2-hydroxyphenyl)acetic acid which underwent intramolecular cyclization with formation of 3-(2-oxo-2,3-dihydrob
Cobalt(II) complex of a diazoalkane radical anion
Bonyhady, Simon J.,Goldberg, Jonathan M.,Wedgwood, Nicole,Dugan, Thomas R.,Eklund, Andrew G.,Brennessel, William W.,Holland, Patrick L.
, p. 5148 - 5150 (2015)
β-Diketiminate cobalt(I) precursors react with diphenyldiazomethane to give a compound that is shown by computational studies to be a diazoalkane radical anion antiferromagnetically coupled to a high-spin cobalt(II) ion. Thermolysis of this complex result
Preparation and application of 5-bromoquinazoline derivative
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Paragraph 0035-0037, (2021/02/16)
The invention discloses a 5-bromoquinazoline derivative shown in the corresponding formula. A synthesis method of the 5-bromoquinazoline derivative compound (I) comprises the following steps: weighing1.18 g of 5-bromoisatin, 2.5503g of ammonium formate an
Formation of Osmium Alkylidene, Alkylidyne, and Dinitrogen Complexes from Reactions of OsCl2(PPh3)3with Diazoalkanes
Cui, Mingxu,Jia, Guochen,Sung, Herman H. Y.,Williams, Ian D.
, p. 3833 - 3842 (2021/11/18)
The reactions of OsCl2(PPh3)3 with a series of diazoalkanes were investigated. The reactions with monosubstituted diazoalkanes N2CHR gave the desired osmium alkylidene complexes OsCl2(=CHR)(PPh3)2, the stability of which is dependent on the substituent on the alkylidene carbons. The five-coordinate osmium alkylidene complex OsCl2(=CHCOOMe)(PPh3)2 is thermally stable, whereas the analogous complex OsCl2(=CH-p-tol)(PPh3)2 readily rearranges to its hydrido-alkylidyne form OsHCl2(C-p-tol)(PPh3)2. A substitution reaction of OsCl2(=CHCOOMe)(PPh3)2 with PCy3 produced the hydrido-alkylidyne complex OsHCl2(CCOOMe)(PCy3)2, revealing the effect of the phosphine on the relative stability of OsCl2(=CHCOOMe)(PR3)2 and OsHCl2(CCOOMe)(PR3)2. The reaction of OsCl2(PPh3)3 with the acceptor-acceptor disubstituted diazoalkane dibenzoyl diazomethane, bearing COPh substituents, led to the formation of the metallacyclic complex OsCl2{κ2-N,O-[N2C(COPh)C(Ph)O]}(PPh3)2 due to the chelating effect of dibenzoyl diazomethane. The complex OsCl2(PPh3)3 catalyzed the homocoupling of the diazoalkane N2CPh2 to give the azine Ph2C=N-N=CPh2. The η1-N2 coordinated binuclear complex (Ph3P)2ClOs(μ-Cl)3Os(PPh3)2(N2) was isolated as a minor product, which was considered to be an off-cycle product in the catalytic reaction.
Application of chiral oxazoline-copper complex
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Page/Page column 8, (2020/01/25)
An application of a bis{2-[4(R)-phenyl-4,5-dihydro]-2-oxazoline}phenol-copper complex with a chemical formula shown in the description is characterized in that the complex has a good catalysis performance when used as a catalyst for a reaction of diphenyl