Výsledky vyhledávání - "and Roger A. Rennels"

Aren-BuLi/TMEDA-Mediated Arene Ortholithiations Directed? Substituent-Dependent Rates, Substituent-Independent Mechanisms

Autor: David B. Collum, Scott T. Chadwick, Jennifer L. Rutherford, Roger A. Rennels

Publikováno v: Journal of the American Chemical Society. 122:8640-8647

Rate studies of the lithiation of benzene and related alkoxy-substituted aromatics by n-BuLi/TMEDA mixtures implicate similar mechanisms in which the proton transfers are rate limiting with transition structures of stoichiometry [(n-BuLi)2(TMEDA)2(Ar

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a2ae56be6f50cb89f040e501c6f07839
https://doi.org/10.1021/ja001471o

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Palladium-Catalyzed Coupling of Optically Active Amines with Aryl Bromides

Autor: Seble Wagaw, Stephen L. Buchwald, and Roger A. Rennels

Publikováno v: Journal of the American Chemical Society. 119:8451-8458

The coupling of enantiomerically enriched amines with aryl bromides produces the corresponding N-aryl derivatives. The choice of ligand in the palladium-catalyzed coupling is critical to the format...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fbb1a9c63b9b357aee3e08d17b0dfe73
https://doi.org/10.1021/ja971583o

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Preparation of 1-Alkoxy-1,3-cyclohexadienes via Iron Complexation/Decomplexation

Autor: John V. McClusky, Roger A. Rennels

Publikováno v: ChemInform. 35

A synthetic method for the preparation of 1‐alkoxy‐1,3‐cyclohexadienes is presented. Iron complexation/decomplexation is used to produce and purify the desired compound without contamination of isomeric byproducts.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb3b36b97acdd544025b275ef175c1aa
https://doi.org/10.1002/chin.200430076

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Ortholithiation of Anisole by n-BuLi−TMEDA: Reaction via Disolvated Dimers

Autor: David B. Collum, Roger A. Rennels, and Ashok J. Maliakal

Publikováno v: Journal of the American Chemical Society. 120:421-422

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cd1de839118e8ad0c33089e91c093997
https://doi.org/10.1021/ja972610d

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Transition-metal-catalyzed strategies for the synthesis of neocarzinostatin chromophore and analogs: intramolecular delivery of palladium controls construction of the biologically relevant dienediyne core

Autor: John M. Nuss, Roger A. Rennels, Barry Levine

Publikováno v: Journal of the American Chemical Society. 115:6991-6992

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6e8853c12ab2edc60bb24954947fd71f
https://doi.org/10.1021/ja00068a074

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Synthesis and Conformational Analysis of 1,2:3,4-Di-O-isopropylidene-alpha-D-galactopyranose: A Nuclear Magnetic Resonance and Molecular Modeling Experiment

Autor: Roger A. Rennels, John L. Peters, Gitanjali Asirwatham, M. Mark Midland, John J. Beck

Publikováno v: Journal of Chemical Education. 71:897

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::714153c5494919d1c29f1de5307db0da
https://doi.org/10.1021/ed071p897

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Akademický článek

Synthesis of a Dynemicin A Analogue and Its Bergaman-Type Cycloaromatization.

Autor: Takahashi, Takashi, Sakamoto, Yasuharu, Yamada, Haruo, Usui, Shuji, Fukazawa, Yoshimasa

Publikováno v: Angewandte Chemie International Edition; 1995, Vol. 34 Issue 12, p1345-1348, 4p

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Akademický článek

A Simple Catalytic Method for the Conversion of Aryl Bromides to Arylamines.

Autor: Guram, Anil S., Rennels, Roger A., Buchwald, Stephen L.

Publikováno v: Angewandte Chemie International Edition; 1995, Vol. 34 Issue 12, p1348-1350, 3p

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