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By employing Pd(OAc)2, Cs2CO3, or NaOH, and the new ligand (t-Bu)2PNP(i-BuNCH2CH2)3N (3a), an electronically diverse array of aryl bromides and chlorides possessing base-sensitive substituents (nitro, ester, and keto) provide coupling products with bulky aryl amines in good to excellent...
There is no η2-olefin intermediate on the reaction path. DFT calculations seeking the energy and structure of the two carbenes Cp2ZrHCl[CF(CH3)] and Cp2ZrFCl[CH(CH3)] are also described. 展开 DOI: 10.1021/ja0024340 被引量: 1 年份: 2001 ...
CLASS TECH TIPSThe article mentions three technologies for educational use, namely the OpenEd.io K-12 educational resource library system, the web browser-based tool imakiku for student engagement promotion and the Mobile Parent Communication application from software ...
- International Conference on Science & Technology of Synthetic Metals 被引量: 2发表: 1994年 Soil-atmospheric exchange of CO sub(2), CH sub(4), and N sub(2)O in three subtropical forest ecosystems in southern China The magnitude, temporal, and spatial patterns of soil-atmospheric greenhouse...
VisualStudioServices.VS2019_8Services VisualStudioServices.VS2019_9Services VisualStudioServices.VS2019_10Services VisualStudioServices.VS2019_11Services VisualStudioServices.VS2022Services VisualStudioServices.VS2022_2Services Derived Microsoft.VisualStudio.VisualStudioServices.VS2022_3Services Attributes...
摘要: In many cost-sensitive environments class probability estimates are used by decisionmakers to evaluate the expected utility from a set of alternatives. Supervis 关键词: active learning cost-sensitive learning class probability estimation ranking supervised learning decision trees uncertainty sampling se...