نتایج جستجو برای: 99m antimony sulfide colloid

تعداد نتایج: 38016  

2016
Pushpak Mizar Rebecca Niebuhr Matthew Hutchings Umar Farooq Thomas Wirth

An efficient thioamination of alkenes mediated by iodine(III) reagents is described. The use of different sulfur nucleophiles allows the flexible synthesis of 1,2-aminothiols from alkenes. By employing chiral iodine(III) reagents, a stereoselective version of the thioamination protocol has also been developed.

Journal: :Chemical communications 2010
Chunyan Du Shanghui Ye Yunqi Liu Yunlong Guo Ti Wu Hongtao Liu Jian Zheng Cheng Cheng Minliang Zhu Gui Yu

A fused-seven-ring anthracene derivative with two sulfur bridges, benzobisthioxanthene (BTA), was synthesized, facilely. OLEDs employing BTA as the emitter exhibited bright (maximum 40,752 cd m(-2)) and efficient red emission (CIE, x = 0.64, y = 0.36) with a luminous efficiency of 4.4 cd A(-1).

Journal: :Chemical communications 2011
Shuting Cai Shaohua Xiang Jing Zeng Bala Kishan Gorityala Xue-Wei Liu

Carbohydrate-integrated isoxazolines were synthesized from 2-nitroglycals and sulfur ylides, with the aid of 1-phenylthiourea catalyst. The reactions proceeded via [4+1] annulations and upon subsequent rearrangement, afforded the corresponding isoxazolines in high yields with excellent diastereoselectivities (up to 95% de).

Journal: :Chemical communications 2017
Yoko Takano Kenjiro Hanaoka Kazuhito Shimamoto Ryo Miyamoto Toru Komatsu Tasuku Ueno Takuya Terai Hideo Kimura Tetsuo Nagano Yasuteru Urano

We report a reversible off/on fluorescent probe for monitoring concentration changes of sulfane sulfur by utilizing the unique ability of sulfane sulfur to bind reversibly to other sulfur atoms and the intramolecular spirocyclization reaction of xanthene dyes. It reversibly visualized sulfane sulfur in living A549 cells and primary-cultured hippocampal astrocytes.

Journal: :The journal of physical chemistry. A 2009
Pim W J M Frederix Chung-Hsin Yang Gerrit C Groenenboom David H Parker Koutayba Alnama Colin M Western Andrew J Orr-Ewing

The photodissociation of diatomic sulfur, S(2), in the region of the first dissociation limit is studied with velocity map imaging. Correlated fine structure distributions P(J1,J2) for the two S((3)P(J)) fragments are determined at selected photolysis wavelengths. Image analysis of the speed distributions of the atomic fragments following product-state-specific detection results in a revision o...

Journal: :Organic & biomolecular chemistry 2016
Ganesh M Shelke Mukund Jha Anil Kumar

A simple and efficient method for the synthesis of biologically relevant 5H-benzo[4,5][1,3]thiazino[3,2-a]indoles and 5,7-dihydroisothiochromeno[3,4-b]indoles has been developed via intramolecular copper catalysed Ullmann-type C-N coupling and palladium catalysed direct arylation from the corresponding precursors 2-(2-bromobenzylthio)-1H-indole and 2-(2-bromobenzylthio)-1-methyl-1H-indole, resp...

A. Alemi Y. Hanifehpour Firouzsalari

Crystalline antimony sulfide (Sb2S3) with nanorods morphology was successfully prepared via hydrothermal method by the reaction of elemental sulfur, antimony and iodine as starting materials with high yield at 180°C for 24h.Using oxidation reagents like iodine as an initiator of redox reaction to prepare Sb2S3 is reported for first time. Crystal growth of Sb2S3 was done by increasing reaction t...

Journal: :Journal of Korean Medical Science 2002
Chae-Chun Rhim Jong-Sup Park Seog-Nyeon Bae Sung-Eun Namkoong

The purpose of this study was to investigate the feasibility of sentinel node frozen biopsy to minimize the extensive pelvic lymph nodes dissection in early stage cervical cancer patients on the basis that the risk of skip metastasis to the paraaortic area is negligible. Twenty-six patients with early stage cervical cancer were enrolled in this study. Technetium-99m colloid albumin (Tc(99m)) wa...

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