Linear correlations are found for both protonation and activation energies as functions of carbon Is energies. However, there are deviations from the lines that reflect differences between the three processes. Finally, substituent effects for alkenes and alkynes are compared using both activation and ...
In contrast to the well-explored chemistry of diazoalkanes (R2C=N2), diazoalkenes (R2C=C=N2) have been postulated in several organic transformations, but remain elusive long-sought intermediates. Here, we present a room-temperature stable diazoalkene, utilizing a dinitrogen transfer from nitrous ...
Metal-initiated amination of alkenes and alkynes. Chem. Rev. 98, 675–703 (1998) . Article Google Scholar Yi, C. S. & Yun, S. Y. Scope and mechanistic study of the ruthenium-catalyzed ortho-C-H bond activation and cyclization reactions of arylamines with terminal alkynes. J. Am. ...
Is there a trend, or a difference in reactivity of the homologous series of functional groups? Are Alkanes, Alkenes, Alkynes, Alchohols, Carboxylic acids, more reactive with larger amounts of carbons to the chain, then the ones with less amount of carbons?
ROUNDHILL D M,SHEN Z P,ATHERTON S J.Reactivity of the triplet state of the tetrakis(.mu.-pyrophosphito)diplatinate(II) tetraanion with alkenes and alkynes. Comparison with the energy-transfer photosensitizer and diradical chemistry of ketone triplets. Inorganic Chemistry . 1987...
Reactivity of the Triplet State of the Tetrakis(μ-pyrophosphito)diplatinate(II) Tetraanion with Alkenes and Alkynes. Comparison with the Energy-Transfer P... In the first part of this thesis (Chapters I and II), the synthesis, characterization, reactivity and photophysics of per(difluorobora...
Studies on organolanthanide complexes. XXXVIII. New organolanthanide hydrides: synthesis and reactivity towards alkenes, alkynes and organic halides 来自 Semantic Scholar 喜欢 0 阅读量: 21 作者:Z Xie,C Qian,Y Huang 摘要: 科学院上海有机化学研究所; 中国科学院金属有机化学实验室 ...
In this work, we report on the reactivity of H-phosphonate derivatives for the hydrophosphonylation of various alkenes and alkynes under photoinduced free-radical conditions. The reaction was carried out on activated, unactivated and/or disubstituted alkenes or alkynes with 2,2-dimethoxy-2-phenyl...
et al. Gold-catalyzed oxidative cross-coupling of terminal alkynes: selective synthesis of unsymmetrical 1,3-Diynes. J. Am. Chem. Soc. 136, 13174–13177 (2014). 12. Xu, Y. H., Lu, J. & Loh, T. P. Direct cross-coupling reaction of simple alkenes with acrylates catalyzed by ...
A total of 67 VOCs species were detected in this study, including 15 alkanes, 10 alkenes, 1 kind of alkynes, 16 aromatics, 18 halocarbons, 5 OVOCs, and 2 kinds of other VOCs. Table 1 listed the results of the volume concentrations of the 67 VOCs during the sampling period. The average...