62199-53-5Relevant academic research and scientific papers
Merging shuttle reactions and paired electrolysis for reversible vicinal dihalogenations
Dong, Xichang,Roeckl, Johannes L.,Waldvogel, Siegfried R.,Morandi, Bill
, (2021/02/12)
Vicinal dibromides and dichlorides are important commodity chemicals and indispensable synthetic intermediates in modern chemistry that are traditionally synthesized using hazardous elemental chlorine and bromine. Meanwhile, the environmental persistence of halogenated pollutants necessitates improved approaches to accelerate their remediation. Here, we introduce an electrochemically assisted shuttle (e-shuttle) paradigm for the facile and scalable interconversion of alkenes and vicinal dihalides, a class of reactions that can be used both to synthesize useful dihalogenated molecules from simple alkenes and to recycle waste material through retro-dihalogenation. The reaction is demonstrated using 1,2-dibromoethane, as well as 1,1,1,2-tetrachloroethane or 1,2-dichloroethane, to dibrominate or dichlorinate, respectively, a wide range of alkenes in a simple setup with inexpensive graphite electrodes. Conversely, the hexachlorinated persistent pollutant lindane could be fully dechlorinated to benzene in soil samples using simple alkene acceptors.
Base-Mediated Fragmentation of Bicyclic Dihydro-3,6-oxazines: Transformation of Nitroso Diels-Alder Cycloadducts
Campagne, Rémy,Sch?kel, Friederike,Guillot, Régis,Alezra, Valérie,Kouklovsky, Cyrille
supporting information, p. 1884 - 1887 (2018/04/16)
Nitroso Diels-Alder cycloadditions of benzene oxide with various acyl-nitroso derivatives are described. Treatment of these cycloadducts with methyllithium results in a fast fragmentation reaction, leading to highly functionalized cyclic amino alcohols. T
Compound and method of producing organic semiconductor device
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Page/Page column 75, (2011/04/26)
A method of producing an organic semiconductor device is provided in which a layer composed of an organic semiconductor having excellent crystallinity and orientation in a low-temperature region can be formed, and the device can be produced in the air. The method includes forming a layer composed of an organic semiconductor precursor on a base body and irradiating the organic semiconductor precursor with light, wherein the organic semiconductor precursor is a porphyrin compound or an azaporphyrin compound having in its molecule at least one of the structure represented by the following general formula (1) or (2):
NOVEL COMPOUND AND METHOD OF PRODUCING ORGANIC SEMICONDUCTOR DEVICE
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, (2008/12/06)
A method of producing an organic semiconductor device is provided in which a layer composed of an organic semiconductor having excellent crystallinity and orientation in a low-temperature region can be formed, and the device can be produced in the air. The method includes forming a layer composed of an organic semiconductor precursor on a base body and irradiating the organic semiconductor precursor with light, wherein the organic semiconductor precursor is a porphyrin compound or an azaporphyrin compound having in its molecule at least one of the structure represented by the following general formula (1) or (2):
An efficient and highly stereoselective synthesis of gala-Quercitol from 1,4-cyclohexadiene
Baran, Arif,Secen, Hasan,Balci, Metin
, p. 1500 - 1502 (2007/10/03)
gala-Quercitol was synthesized from 1,4-cyclohexadiene in seven steps and overall yield of 68%. Reaction of 5,6-dibromo-2,2-dimethylhexahydro-1,3-benzodioxole, synthesized from 1,4-cyclohexadiene in three steps, with excess NaOMe gave (3aα,5α,7aα)-5-metho
Cycloallenes, 13. - Cyclohexa-1,2,4-triene from 1-bromocyclohexa-1,4- diene
Christl, Manfred,Groetsch, Stefan
, p. 1871 - 1874 (2007/10/03)
1-Bromocyclohexa-1,4-diene (3) was prepared from trans-4,5- dibromocyclohexene by elimination of hydrogen bromide. Treatment of a solution of 3 in furan or 2,5-dimethylfuran with KOtBu afforded the tetrahydroepoxynaphthalenes 4 and 5, respectively. The st
Chemistry of Benzene-Anthracene Cyclodimers
Yang, Nien-chu C.,Chen, Ming-Jang,Chen, Peter
, p. 7310 - 7315 (2007/10/02)
Synthesis of the formal s + 4?s> and s + 2?s> adducts of benzene and anthracene (1 and 2) has made possible the observation of features on the potential-energy surfaces that govern Woodward-Hoffmann-allowed and -forbidden cycloreversions.The thermal dissociation of 1 is not chemiluminescent in spite of favorable kinetic and thermodynamic parameters, and its photochemical dissociation yields excited anthracene in very high efficiency (ΦAn* = 0.80).The enthropy of activation in the thermal dissociation of 2 is negative, and the photochemical dissociation of 2 yields excited anthracene in low but appreciable efficiency (ΦAn* = 0.08).Comparision of these data clearly demonstrates orbital symmetry control of both the ground- and excited-state reactions.
