Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Joseph, Becica"'
Autor:
William A. Sabbers, Makhsud I. Saidaminov, David C. Leitch, Ryan Watt, Joseph Becica, Jingjun Huang, Matthew Isaac, Emma Dennis
Publikováno v:
ACS Catalysis. 11:5636-5646
We report an easily prepared and bench-stable mononuclear Pd(0) source stabilized by a chelating N,N′-diaryldiazabutadiene ligand and maleic anhydride: DMPDAB–Pd–MAH. Phosphine ligands of all types...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a06d6758992b1bba0d3c6db1c6b99a8
https://doi.org/10.1021/acscatal.1c00288
https://doi.org/10.1021/acscatal.1c00288
Publikováno v:
Angewandte Chemie International Edition. 61
The development of two divergent and complementary Lewis acid catalyzed additions of bicyclobutanes to imines is described. Microscale high-throughput experimentation was integral to the discovery and optimization of both reactions. N-arylimines unde
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::644f6df24656584e82e7d1e8e3986477
https://doi.org/10.1002/anie.202204719
https://doi.org/10.1002/anie.202204719
Autor:
Joseph Becica, David C. Leitch
Publikováno v:
Synlett. 32:641-646
The activation of strong C–O bonds in cross-coupling catalysis can open up new oxygenate-based feedstocks and building blocks for complex-molecule synthesis. Although Ni catalysis has been the major focus for cross-coupling of carboxylate-based ele
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ebdcdb14a537b8eab1ba0adb2682db6
https://doi.org/10.1055/a-1306-3228
https://doi.org/10.1055/a-1306-3228
Publikováno v:
Dalton Transactions. 49:16067-16071
With the exception of activated sulfonate esters, oxidative addition of Ar-O bonds to Pd(0) complexes is extremely rare. This has led to a general perception that Pd-catalyzed cross-coupling is not feasible with O-based electrophiles such as aryl est
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::78b06a2b07f23a6530b268cfcc565b93
https://doi.org/10.1039/d0dt01119c
https://doi.org/10.1039/d0dt01119c
The development of two divergent and complementary Lewis acid catalyzed additions of bicyclobutanes to imines is described. Microscale high-throughput experimentation was integral to the discovery and optimization of both reactions. N-arylimines unde
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d2a12a246a811947744a8fed0a14d6a
https://doi.org/10.33774/chemrxiv-2021-p0fzf
https://doi.org/10.33774/chemrxiv-2021-p0fzf
Autor:
Joseph Becica, Graham E. Dobereiner
Publikováno v:
Organic & Biomolecular Chemistry. 17:2055-2069
We describe recent examples of prominent reactions in organic synthesis that involve transition metal and Lewis acid cocatalysts. Introducing Lewis acid additives to transition metal catalysis can enable new reactivity or improve activity and selecti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4b87874eff61a22664db2b35c6e3d97
https://doi.org/10.1039/c8ob02856g
https://doi.org/10.1039/c8ob02856g
Autor:
William A. Sabbers, Makhsud I. Saidaminov, David C. Leitch, Emma Dennis, Joseph Becica, Matthew Isaac, Jingjun Huang, Ryan Watt
We report an easily prepared and bench-stable mononuclear Pd(0) source stabilized by a chelating N,N’-diaryldiazabutadiene ligand and maleic anhydride: DMPDAB–Pd–MAH. Phosphine ligands of all types, including bidentate phosphines and large cone
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f049adf4e07972c34e96d8d30678b10
https://doi.org/10.26434/chemrxiv.13604777
https://doi.org/10.26434/chemrxiv.13604777
Publikováno v:
Reaction Chemistry & Engineering.
The Mizoroki–Heck arylation of electron-rich alkenes such as butyl vinyl ether often results in regioisomeric mixtures of products under typical reaction conditions. To discover new catalytic systems for achieving α-selective arylation, an alterna
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c5b7698e382a36146f2e01c92db4488
https://doi.org/10.1039/d1re00124h
https://doi.org/10.1039/d1re00124h
Publikováno v:
Angewandte Chemie (International ed. in English). 59(39)
Carboxylate esters have many desirable features as electrophiles for catalytic cross-coupling: they are easy to access, robust during multistep synthesis, and mass-efficient in coupling reactions. Alkenyl carboxylates, a class of readily prepared non
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1896d3a42ffd3d74f24ac843ef7f82d7
https://pubmed.ncbi.nlm.nih.gov/32578315
https://pubmed.ncbi.nlm.nih.gov/32578315
Publikováno v:
Organometallics. 37:482-490
Positional and stereochemical selectivity in the isomerization of terminal alkenes to internal alkenes is observed using the cis-Mo(CO)4(PPh3)2 precatalyst. A p-toluenesulfonic acid (TsOH) cocatalyst is essential for catalyst activity. Various functi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5477d41d6c71840481b35c41856e9e67
https://doi.org/10.1021/acs.organomet.7b00914
https://doi.org/10.1021/acs.organomet.7b00914