Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Kenichi Michigami"'
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 14, Iss 1, Pp 2012-2017 (2018)
We herein describe a cobalt/Xantphos-catalyzed regioselective addition of simple alkenes to acetophenone derivatives, affording branched homoallylic alcohols in high yields with perfect branch selectivities. The intermediate of the reaction would be
Externí odkaz:
https://doaj.org/article/8a996caf78e0481cbb8255e71f609bc4
Publikováno v:
Bulletin of the Chemical Society of Japan; Mar2024, Vol. 97 Issue 3, p1-10, 10p
Publikováno v:
Journal of Synthetic Organic Chemistry, Japan. 80:210-221
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a06a930b0549ab766d4697aa5703eba2
https://doi.org/10.5059/yukigoseikyokaishi.80.210
https://doi.org/10.5059/yukigoseikyokaishi.80.210
Publikováno v:
Asian Journal of Organic Chemistry. 10:1097-1101
Novel aza-michael addition-asymmetric protonation to unsaturated carboxylic acids with chiral thiourea-boronic acid hybrid catalysts. #asymmetric protonationIn this study, an efficient method has been developed for controlling carbonyl α-chirality w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::685dcaa6b57ff967869595dd7f9bed18
https://doi.org/10.1002/ajoc.202100145
https://doi.org/10.1002/ajoc.202100145
Publikováno v:
ACS Catalysis. 10:683-688
Alkane-gem-diboronic acids have emerged as versatile organoboron catalysts for dehydrative amidation of α-amino acids. A phenol-substituted multiboron catalyst with a B–C–B structure outperformed simple arylboronic acids in the condensation of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::357c83ea79b072813e129c2e76789a78
https://doi.org/10.1021/acscatal.9b03894
https://doi.org/10.1021/acscatal.9b03894
Publikováno v:
Organic & Biomolecular Chemistry. 17:2331-2335
The first chemical enantioselective synthesis of N-hydroxyaspartic acid derivatives using chiral multifunctional thiourea/boronic acid organocatalysts was developed. A series of fumaric monoacids underwent an intermolecular asymmetric aza-Michael add
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e7b18fcb4e20249ba7d161dff3d273b3
https://doi.org/10.1039/c9ob00045c
https://doi.org/10.1039/c9ob00045c
Publikováno v:
Organic Letters. 19:5876-5879
By using Co(acac)2/Xantphos with AlMe3, the C(sp3)–H bonds of allylarene derivatives were cleaved for reaction with various ketones, affording the homoallylic alcohols in moderate to good yields. The branch/linear selectivity depended on the steric
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::799377148e47739bfa9bc0a7421d9202
https://doi.org/10.1021/acs.orglett.7b02871
https://doi.org/10.1021/acs.orglett.7b02871
Publikováno v:
Journal of the American Chemical Society. 139:6094-6097
Catalytic carboxylation of the allylic C(sp3)–H bond of terminal alkenes with CO2 was developed with the aid of a Co/Xantphos complex. A wide range of allylarenes and 1,4-dienes were successfully transformed into the linear styrylacetic acid and he
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b88cb790df0e5e39a2c5dea30dad5fde
https://doi.org/10.1021/jacs.7b02775
https://doi.org/10.1021/jacs.7b02775
Publikováno v:
Synthesis. 49:202-208
1,3-Enynes are hardly amenable to trans-hydrometalation reactions, because they tend to bind the standard ruthenium catalysts too tightly. However, catalysts comprising a [Cp*Ru–Cl] unit allow such compounds to be used, provided they contain an OH
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f67387340b41c7a92724ebea9a1a2a9f
https://doi.org/10.1055/s-0035-1562381
https://doi.org/10.1055/s-0035-1562381
Publikováno v:
Organic letters. 19(21)
By using Co(acac)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::14ca792fa9b19b726fe563f27605025b
https://pubmed.ncbi.nlm.nih.gov/29048908
https://pubmed.ncbi.nlm.nih.gov/29048908