Synthesis, characterization, X-ray crystallography analysis, and catalytic activity of bis(2-pyridylmethyl)amine copper complexes containing coupled pendent olefinic arms in atom transfer radical addition (ATRA) reactions
作者:Katherine A. Bussey、Annie R. Cavalier、Margaret E. Mraz、Kayode D. Oshin、Amy Sarjeant、Tomislav Pintauer
DOI:10.1016/j.poly.2015.12.043
日期:2016.8
C group in the olefinic arm of a neighboring complex. This interaction led to augmentation of the C C bond due to back-bonding from the metal center. Five solid state structures were obtained for the copper(II) complexes with two also displaying intermolecular associative bonding between olefinic pendent arms and the metal center. X-ray crystallography studies showed that the olefinic arm motifs incorporated
Metal phthalocyanine-catalyzed addition of polychlorine-containing organic compounds to C=C bonds
作者:A. V. Ivanov、A. Yu. Maksimov、L. G. Tomilova、N. S. Zefirov
DOI:10.1007/s11172-008-0377-0
日期:2009.11
Organopolychlorine compounds (CCl4, CCl3CO2Et, CCl3CHO) add at the double bond of various olefins under the catalysis of the metal phthalocyanine complexes. A possibility of quantitative catalyst recovery was shown.
The Reaction of Polyhalides with Allylsilanes Catalyzed by Copper(I) Chloride
作者:Michiharu Mitani、Shigenori Hujita
DOI:10.1246/bcsj.70.3055
日期:1997.12
compounds in the presence of copper species, such as copper(I) chloride, copper(II) chloride or metallic copper, to form polyhalo compounds containing an allyl group. Other allylsilane derivatives than allyltrimethylsilane were also subjected to a reaction with carbontetrachloride. 3-Chloro- or 3-bromo-3-trimethylsilyl-1-propene gave 4,4,4-trichloro-1-trimethylsilyl-1-butene. Ethyl 1-trimethylsilylallyl
Photoinitiated ambient temperature copper-catalyzed atom transfer radical addition (ATRA) and cyclization (ATRC) reactions in the presence of free-radical diazo initiator (AIBN)
作者:Marielle Nicole C. Balili、Tomislav Pintauer
DOI:10.1039/c0dt01764g
日期:——
monoadduct was obtained in lower yields in the ATRA of less active halogenated compounds, which was mostly due to incomplete alkene conversions. Ambient temperature ATRA of CCl4 to various 1,6-dienes followed by sequential ATRC was also performed in the presence of UV light using [CuII(TPMA)Cl][Cl] complex and AIBN. High yields of the 5-exo-trig cyclic product were obtained for all dienes with preferential
Direct and Stereoselective Synthesis of Diversely Substituted 2,4-<i>trans</i>-(NH)-Pyrrolidines by Copper(I)-Catalyzed Radical Cyclization at Low Temperature
作者:Ram N. Ram、Dharmendra Kumar Gupta
DOI:10.1002/adsc.201600844
日期:2016.10.20
applications of the products in the preparation of useful 4‐chloro‐NH‐pyrrole in a single step, has also been demonstrated. A quick, mild and general method involving simple addition of trichloroacetic acid/dimethyl sulfoxide (CCl3CO2H‐DMSO) solution to readily accessible N‐allylaldimines and ketimines tolerating acid‐sensitive and highly deactivating substituents was developed to access the amine precursors.
这项工作描述了带有未保护的NH-基团的β-卤代乙基烯丙基胺在铜(I)催化下的自由基环化成功,同时保持了催化剂的氧化还原活性。环化在0°C时发生区域和非对映选择性,并直接以高分离产率提供不同取代的1,3-反式-(NH)-吡咯烷。提出了庞大的铜络合物参与环化步骤,这可能是非对映选择性的可能原因。还证明了该产品在一步制备有用的4-氯-NH-吡咯中的合成应用。一种快速,温和且通用的方法,包括将三氯乙酸/二甲亚砜(CCl 3 CO 2 H-DMSO)溶液简单地添加到易于获取的N中开发了可耐受酸敏感性和高度失活的取代基的烯丙醛和酮亚胺,以获取胺前体。