نتایج جستجو برای: indene
تعداد نتایج: 401 فیلتر نتایج به سال:
Pseudomonas putida CA-3 is capable of consuming a number of aromatic and aliphatic hydrocarbons. With the exception of styrene none of the alkenes tested are capable of supporting the growth of P. putida CA-3 as sole sources of carbon and energy. The highest rate of alkene consumption was observed with styrene as the substrate. A 6.5- and 15.5-fold lower rate of substrate consumption was observ...
The combustion of fossil fuels forms polycyclic aromatic hydrocarbons (PAHs) composed of five- and six- membered aromatic rings, such as indene (C9 H8 ), which are carcinogenic, mutagenic, and deleterious to the environment. Indene, the simplest PAH with single five- and six-membered rings, has been predicted theoretically to be formed through the reaction of benzyl radicals with acetylene. Ben...
A novel fast, convenient and inexpensive synthesis of 1',3'-dioxo-1',3'-dihydrospiro[cyclopropane-1,2'-indene]-2,2,3,3-tetracarbonitrile and dimethyl 2,3-dicyano-1',3'-dioxo-1',3'-dihydrospiro[cyclopropane-1,2'-indene]-2,3-dicarboxylate is reported. These compounds undergo double carbanion cleavage under the action of alcohols resulting in the formation of stable salts, containing new allylic-t...
An atom-economical diastereoselective synthesis of indenodithiepines and indenodithiocines has been developed via a domino reaction of propargylic alcohols and dithioacetals in the presence of InCl3 as a catalyst. A range of functionalized dithiepines and dithiocines, fused to the indene ring, were obtained in good to excellent yields under mild conditions.
Vicinal silylmethyl-substituted cyclopropyl carbinols undergo tandem intermolecular cation-arylacetylene cyclization to generate indene derivatives.
In the title mol-ecule, [Ru(C(9)H(7))(C(7)H(5)O)(CO)(2)], the dihedral angle between the mean plane of the indene ring system and the phenyl ring is 86.28 (8)°. The crystal structure is stabilized by weak inter-molecular C-H⋯O and C-H⋯π(arene) inter-actions. The Ru-η(5)-cyclopentadienyl centroid bond length is 1.946 (11) Å
a series of amino derivative of 1-indene and 9-fluorene have been synthesized from their corresponding iminium salt, generated in situ in the concentrated ethereal lithium perchlorate solution, and 1-indenyl or 9-fluorenyl anions. the yields of the reactions depend on the kind of anion. addition of 1-indeny anion to the iminium salt gives the amino derivative of 1-indene, while addition of fluo...
In the title compound, C(35)H(29)N(3)O, the quinoxaline and indene systems are essentially planar, with maximum deviations of 0.047 (2) and 0.032 (2) Å for C atoms, respectively. The quinoxaline system forms a dihedral angle of 4.75 (3)° with the indene system. The pyrrolizine system is folded. The substituted five-membered ring adopts an envelope conformation. In the other five-membered ring, ...
In the title compound, C38H32N4O3·H2O, the quinoxaline-indene and pyrrolizine systems are essentially planar, with maximum deviations from their mean planes of 0.162 and 0.563 Å, respectively. The pyrrolizine ring forms dihedral angles of 88.53 (5) and 89.95 (8)° with the quinoxaline-indene system and the indoline ring, respectively. The central pyrrolidine ring has an envelope conformation wit...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید