Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Niklas Kraemer"'
Publikováno v:
Org Lett
We have explored the net-[4 + 2]-cycloadditions of a variety of aryl (or alkenyl) alkynes. Tautomerization via base-catalyzed alkyne-to-allene isomerization produces a transient allene, which undergoes stepwise cyclization with not only a pendant alk
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::61e1cb3dc22a4c55dc93c6a944c216ab
https://pubmed.ncbi.nlm.nih.gov/35311283
https://pubmed.ncbi.nlm.nih.gov/35311283
Publikováno v:
The Journal of organic chemistry, vol 83, iss 24
o-Nitrosobenzaldehyde is a reactive intermediate useful in the synthesis of nitrogen heterocycles. Previous strategies for using o-nitrosobenzaldehyde involve its isolation via chromatography and/or formation under harsh conditions. Herein, this inte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d5ec21d86a5720ffb619e4e85b6d4a0
https://doi.org/10.1021/acs.joc.8b02356
https://doi.org/10.1021/acs.joc.8b02356
Autor:
Niklas, Kraemer, Clarabella J, Li, Jie S, Zhu, Julio M, Larach, Ka Yi, Tsui, Dean J, Tantillo, Makhluf J, Haddadin, Mark J, Kurth
Publikováno v:
Org Lett
The Davis−Beirut reaction provides access to2H-indazoles from aromatic nitro compounds. However, N-aryl targets have been traditionally challenging to access due to competitive alternate reaction pathways. Previously, the key nitroso imine intermed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::348651f2f02a999377e1abc0754de566
https://pubmed.ncbi.nlm.nih.gov/31339318
https://pubmed.ncbi.nlm.nih.gov/31339318
Autor:
Dean J. Tantillo, Ka Yi Tsui, Jung-Ho Son, Jie S. Zhu, Makhluf J. Haddadin, Clarabella J. Li, Niklas Kraemer, Mark J. Kurth
The Cadogan cyclization is a robust but harsh method for the synthesis of 2 H-indazoles, a valuable class of nitrogen heterocycles. Although nitrene generation by exhaustive deoxygenation is widely accepted as the operating mechanism in the reductive
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f05c7d527c058269501d86d472fa197
https://europepmc.org/articles/PMC6705401/
https://europepmc.org/articles/PMC6705401/
Autor:
Clarabella J. Li, Jung-Ho Son, Jie S. Zhu, Niklas Kraemer, Marina E. Shatskikh, Dean J. Tantillo, Makhluf J. Haddadin, Mark J. Kurth
Publikováno v:
Organic letters, vol 20, iss 16
A concise, one-step route to indazolones from primary alkyl amines and o-nitrobenzyl alcohols is reported. The key step in this readily scalable indazolone forming process involves base-mediated in situ o-nitrobenzyl alcohol → o-nitrosobenzaldehyde
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6dd83b693a5d41c0afb24769ab925f94
https://escholarship.org/uc/item/63z8w031
https://escholarship.org/uc/item/63z8w031