62861-80-7Relevant academic research and scientific papers
Synthesis of multinuclear Rh(I) complexes bearing triazolylidenes and their application in C-C and c-Si bond forming reactions
Mendoza-Espinosa, Daniel,Rendón-Nava, David,Vásquez-Pérez, Jose M.,Sandoval-Chávez, Cesar I.,Alvarez-Hernández, Alejandro
, p. 3961 - 3971 (2020/12/01)
Multidentate carbene ligands are valuable frameworks for the preparation of carbene complexes displaying higher nuclearity. In the present work, we report the synthesis of a series of mono- to tetra-[Rh(COD)I] complexes (3a- d) supported by mesoionic triazol-5-ylidenes. The general synthetic procedure involves the one step reaction of the appropriate triazolium (2a-d) salt in the presence of KHMDS and stoiquiometric amounts of the rhodium(I) precursor. Treatment of complexes 3a-d with an excess of carbon monoxide allows for the quantitative preparation of complexes 4a-d featuring a [Rh(CO)2I] fragment used for the detemination of the donor properties of the new triazolylidene ligands. All complexes have been fully characterized by means of 1H and 13C NMR spectroscopy, melting point, elemental analysis, and in the case of complex 3a, by X-ray crystallography. Comparison of the catalytic activity of the new rhodium complexes in C-C and C-Si bond forming processes demonstrate the enhanced performance of the tetranuclear species suggesting the possibility of strong cooperative effects in these multinuclear complexes.
Synthesis method of methylcyclopropene probe
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Paragraph 0019-0020, (2017/04/05)
The invention discloses a synthesis method of a methylcyclopropene probe, and belongs to the technical field of small organic molecule fluorescent probes. The method includes the steps that 3-(trimethylsilyl)-2-propyn-1-ol serves as the raw material and i
A new protocol for nickel-catalysed regio- and stereoselective hydrocyanation of allenes
Arai, Shigeru,Hori, Hiroto,Amako, Yuka,Nishida, Atsushi
supporting information, p. 7493 - 7496 (2015/05/04)
Regio- and stereoselective hydrocyanation under nickel catalysis is described. This report shows that allenyl C-C double bonds are discriminated and converted to the corresponding carbonitriles as a single product. The key functionalities for achieving high regio- and stereocontrol are aryl and cyclopropyl groups in the substrates. This journal is
Studies on retro-[1,4] Brook rearrangement of 3-silyl allyloxysilanes. Observation of the formation of unusual 3,3-bissilyl enols
Gan, Zubao,Wu, Ya,Gao, Lu,Sun, Xianwei,Lei, Jian,Song, Zhenlei,Li, Linjie
supporting information; experimental part, p. 6928 - 6934 (2012/08/29)
Detailed investigations of the retro-[1,4] Brook rearrangement of 3-silyl allyloxysilanes are described. Based on control experiments and NMR studies, rationalizations are proposed for the formation of 3,3-bissilyl enols, unusual compounds that are stable
Hydromagnesiation of 3-Trimethylsilylprop-2-yn-1-ol. A Simple Route to (E)-3-Trimethylsilylalk-2-en-1-ols
Sato, Fumie,Watanabe, Hiroshi,Tanaka, Youichi,Sato, Masao
, p. 1126 - 1127 (2007/10/02)
Hydromagnesiation of 3-trimethylsilylprop-2-yn-1-ol affords the alkenylmagnesium halide (3) exclusively, which is valuable as a precursor of various (E)-3-trimethylsilylalk-2-en-1-ols.
