نتایج جستجو برای: benzofuran derivatives iodine

تعداد نتایج: 127573  

2011
Hong Dae Choi Pil Ja Seo Byeng Wha Son Uk Lee

In the title compound, C(20)H(12)ClFO(2)S, the O atom and the phenyl ring of the phenyl-sulfinyl substituent lie on opposite sides of the plane of the benzofuran fragment; the phenyl ring is almost perpendicular to this plane [82.44 (5)°]. The 4-fluoro-phenyl ring is rotated out of the benzofuran plane, making a dihedral angle of 20.83 (6)°.

Journal: :journal of nanostructures 2014
m. mazloum ardakani a. dehghani firouzabadi a. benvidi b. b fatemeh mirjalili r. zare

new kinds of hydroquinone derivatives were synthesized and along with a azo dye applied as additives in the iodide/iodine redox electrolyte for dye-sensitized solar cells and their effect on the short-circuit photocurrent of dye sensitized solar cells was investigated. addition of 0.05 m a hydroquinone derivative in the electrolyte comprising 0.5 m 1-methyl-3-propylimidazolium iodide (mpii) and...

2008
Hong Dae Choi Pil Ja Seo Byeng Wha Son Uk Lee

The title compound, C(15)H(12)O(2)S, was prepared by the oxidation of 3-methyl-sulfanyl-2-phenyl-1-benzofuran with 3-chloro-peroxy-benzoic acid. The phenyl ring makes a dihedral angle of 37.65 (8)° with the plane of the benzofuran fragment. The O atom and the methyl group of the methyl-sulfinyl substituent lie on opposite sides of the plane of the benzofuran ring system. The crystal structure i...

Journal: :Bulletin of the Chemical Society of Japan 1970

Journal: :The Journal of organic chemistry 2015
Thomas P Willumstad Paul D Boudreau Rick L Danheiser

A two-stage "tandem strategy" for the regiocontrolled synthesis of very highly substituted quinolines is described. Benzannulation based on the reaction of cyclobutenones or diazo ketones with N-propargyl-substituted ynamides proceeds via a cascade of several pericyclic reactions to generate multiply substituted aniline derivatives. In the second stage of the tandem strategy, triflate derivativ...

2013
Akiya Ogawa Taichi Tamai Takenori Mitamura Akihiro Nomoto

Photoinduced cyclization of o-alkenylaryl isocyanides with (PhS)2 in the presence of (PhTe)2 affords the corresponding bisthiolated indene derivatives in good yields via radical cyclization process by thio radical. The procedure can be applied to the construction of tetracyclic systems by using bis(o-aminophenyl) disulfides in place of (PhS)2. In sharp contrast, when o-alkynylaryl isocyanides a...

2004
U. Fehn Y. Muramatsu

The strong association of iodine with organic material and the presence of the cosmogenic radioisotope I make the iodine isotopic system useful in tracing and dating studies of organic materials and their derivatives. We present here results from two new applications of this system, investigations of gas hydrates from the Peru Margin (ODP 201, Site 1230) and of fluids collected from the fore ar...

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