Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Rendy Kartika"'
Publikováno v:
Synthesis (Stuttg)
This review article features selected examples on the synthesis of functionalized pyrroles that were reported between 2014 and 2019. Pyrrole is an important nitrogen-containing aromatic heterocycle that can be found in numerous compounds of biologica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::abbfe2f635f5a159d70edd3634209291
https://doi.org/10.1055/s-0040-1706713
https://doi.org/10.1055/s-0040-1706713
Autor:
Joshua A. Malone, Satish Chandra Philkhana, Jacob R. Stepherson, Fatimat O. Badmus, Frank R. Fronczek, Rendy Kartika
Publikováno v:
Organic letters. 24(26)
We describe a new synthetic reaction that generates all-carbon bis-quaternary centers at the opposing side of α-carbons in cyclohexanone with four different substituents in a controlled manner. Catalyzed by Cu(MeCN)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::59b6bfe679d9e701c73a208046cdf6f8
https://pubmed.ncbi.nlm.nih.gov/35767696
https://pubmed.ncbi.nlm.nih.gov/35767696
Publikováno v:
Chemical Communications. 56:5034-5037
An expedient synthesis of highly substituted tetrahydrobenzofuran via an unsymmetrical silyloxyallyl cation is reported. Conveniently generated under catalytic Brønsted acid conditions, nucleophilic capture of this reactive intermediate by silylenol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c5899fe8e99f9c30e44d755ce736efa
https://doi.org/10.1039/d0cc01796e
https://doi.org/10.1039/d0cc01796e
Publikováno v:
Organic Letters. 21:5611-5615
The utility of triphosgene and DMAP as mild reagents for chemoselective dehydration of tertiary alcohols is reported. Performed in dichloromethane at room temperature, this reaction is readily tolerated by a broad scope of substrates, yielding alkene
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4687e8680bba686c52b1ba3c4396abc3
https://doi.org/10.1021/acs.orglett.9b01959
https://doi.org/10.1021/acs.orglett.9b01959
Publikováno v:
Tetrahedron
This review article highlights selected advances in triphosgene-enabled organic synthetic reactions that were reported in the decade of 2010–2019. Triphosgene is a versatile reagent in organic synthesis. It serves as a convenient substitute for the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0b4050c5f52b4bcefe76e434bf8a0d3
https://pubmed.ncbi.nlm.nih.gov/33883783
https://pubmed.ncbi.nlm.nih.gov/33883783
Publikováno v:
Chem Commun (Camb)
An expedient synthesis of highly substituted tetrahydrobenzofuran via unsymmetrical silyloxyallyl cation is reported. Conveniently generated under catalytic Brønsted acid conditions, nucleophilic capture of this reactive intermediate with silylenola
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c7a1f2c849222da34449dcc2dafbcac8
https://pubmed.ncbi.nlm.nih.gov/32242579
https://pubmed.ncbi.nlm.nih.gov/32242579
Autor:
Frank R. Fronczek, Nitin S. Dange, Rendy Kartika, Mirza A. Saputra, Joshua A. Malone, Alexander H. Cleveland
Publikováno v:
Organic Letters. 19:2414-2417
A new method to functionalize enamides via an intermediacy of unsymmetrical 2-amidoallyl cations is reported. Generated under mild Brønsted acid catalysis, these reactive species were found to undergo addition with various nucleophiles at the less s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::55d3e1464437908242f8936c9cebea2d
https://doi.org/10.1021/acs.orglett.7b00962
https://doi.org/10.1021/acs.orglett.7b00962
Autor:
Anne Milet, Joshua A. Malone, Alexander H. Cleveland, Caitlin G. Bresnahan, Kiara Taylor-Edinbyrd, Revati Kumar, Nitin S. Dange, Rendy Kartika
Publikováno v:
The Journal of organic chemistry. 84(11)
Our investigations on the reaction mechanism to account for regioselectivity on the addition of indoles to unsymmetrical silyloxyallyl cations are reported. Using both experimental and computational methods, we confirmed the significance of steric ef
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b709319de81f922419c38a57cfb611f3
https://pubmed.ncbi.nlm.nih.gov/31050428
https://pubmed.ncbi.nlm.nih.gov/31050428
Publikováno v:
Organic letters. 21(10)
An expedient synthesis of tetrahydroindoles and tetrahydrocyclopenta[ b]pyrroles, highlighted by Bronsted acid catalyzed formal [2 + 2 + 1] annulation reaction, is reported. Using three readily accessible reaction components, i.e., an electrophilic s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c41099040d9187ca5e40047d2363ada1
https://pubmed.ncbi.nlm.nih.gov/31033299
https://pubmed.ncbi.nlm.nih.gov/31033299
Autor:
Frank R. Fronczek, Revati Kumar, Mirza A. Saputra, Nitin S. Dange, Pu Du, Binod Nepal, Rendy Kartika
We report an enantioconvergent approach for the functionalization of enamides at the β-carbon atom, which involves a chiral Bronsted acid induced tautomerization of 2-amidoallyl into 1-amidoallyl cations. These putative reactive intermediates were p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a343c0d6accd3679aba579f03dd184a
https://europepmc.org/articles/PMC6407611/
https://europepmc.org/articles/PMC6407611/
