全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
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作者:Jon C. Lorenz , Larry Nummy ...
来源:[J].Org. Process Res. Dev., 2013, Vol.17 (8), pp.1061鈥?065ACS
摘要:Chemical Reviews (Washington, DC, United States) (2003), 103 (8), 3029-3069 CODEN: CHREAY; ISSN:0009-2665. ... Chemical Reviews (Washington, DC, United States) (2011), 111 (3), 1713-1760 CODEN: CHREAY; ISSN:0009-2665. ... Chemical Reviews (Washington, DC, United States) (2011), 1...
作者:Jon C. Lorenz , Nelu Grinberg ...
来源:[J].Tetrahedron Letters(IF 2.397), 2012, Vol.53 (15), pp.1982-1986Elsevier
摘要:Abstract(#br)A novel trans -diastereoselective reductive amination of 4-substituted cyclohexanones is described using 9-BBN as reducing agent in the presence of FeCl 3 . The method permits efficient synthesis of structurally diverse 4- trans -alkoxycyclohexylamines.
作者:Zhiqiang Yang , Jon C. Lorenz , Yian Shi
来源:[J].Tetrahedron Letters(IF 2.397), 1998, Vol.39 (47), pp.8621-8624Elsevier
摘要:Abstract(#br)An organozinc species RXZnCH 2 I generated by reacting Zn(CH 2 I) 2 with RXH was found to be an efficient reagent for the cyclopropanation of olefins at room temperature. A 50.7% ee was obtained for the cyclopropanation of trans -β-methylstyrene when a chiral al...
作者:Jon C. Lorenz , Nelu Grinberg ...
来源:[J].Tetrahedron Letters(IF 2.397), 2009, Vol.50 (45), pp.6126-6129Elsevier
摘要:Abstract(#br)Pd-catalyzed aminocarbonylation of heteroaryl halides, using monodentate ligand di- tert -butylphosphinoferrocene tetrafluoroborate is reported. Good to high yields were obtained with chiral amines on a variety of substrates including 2-bromo heteroaryls.
作者:Jon C. Lorenz , Riccardo Giovannini ...
来源:[J].European Journal of Organic Chemistry(IF 3.344), 2016, Vol.2016 (15), pp.2599-2602Wiley
摘要:Abstract(#br)An efficient continuous flow iron‐catalyzed Kumada cross‐coupling was developed for the coupling of 2‐chloropyrazine and various aryl Grignard reagents in presence of low catalyst loadings (0.5 mol‐%). Compared to batch mode, the continuous flow approach ov...
作者:Jon C. Lorenz , Heewon Lee
来源:[J].Advanced Synthesis & Catalysis(IF 5.535), 2016, Vol.358 (12), pp.1924-1928Wiley
摘要:Abstract(#br)A simple N‐heterocyclic carbene (NHC) derived from 1‐methyl‐3‐ethylimidazolium tetrafluoroborate was found to be an efficient ligand for a range of copper‐catalyzed cross‐coupling reactions, leading to the formation of aromatic ethers and thioethers.(#br)
作者:Jon C. Lorenz , Karl Grozinger ...
来源:[J].Magnetic Resonance in Chemistry(IF 1.528), 2005, Vol.43 (12), pp.1032-1039Wiley
摘要:Abstract(#br)Four unknown trace impurities (7–10) were observed in the capsule formulation of the HIV drug Tipranavir® after prolonged storage at 30 °C/70% RH. Extensive NMR and LC/MS analyses revealed the compounds to be covalent adducts between TRIS, an excipien...

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