Selectively converting glucose to fructose using immobilized tertiary amines
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Catalysis"
DOI: 10.1016/j.jcat.2017.07.021
Abstract: Abstract Glucose isomerization to fructose is an important step in upgrading biomass to higher valued products. Tertiary amines can be highly selective catalysts for this reaction. In this work, tertiary amine analogues were functionalized on… read more here.
Keywords: selectively converting; glucose fructose; tertiary amines; using immobilized ... See more keywords
Rose Bengal-photosensitized oxidation of tertiary amines for the synthesis of bis-1,3-dicarbonyl compounds
Sign Up to like & getrecommendations! Published in 2017 at "Tetrahedron"
DOI: 10.1016/j.tet.2017.09.050
Abstract: Abstract We report an example of Rose Bengal-photosensitized oxidation of tertiary amines for the synthesis of bis-1,3-dicarbonyl compounds. This protocol employs Rose Bengal as a visible-light absorbing photocatalyst without the need of a transition metal,… read more here.
Keywords: tertiary amines; amines synthesis; oxidation tertiary; bengal photosensitized ... See more keywords
KMnO4-mediated oxidative C N bond cleavage of tertiary amines: Synthesis of amides and sulfonamides
Sign Up to like & getrecommendations! Published in 2019 at "Tetrahedron"
DOI: 10.1016/j.tet.2019.03.047
Abstract: Abstract KMnO4-mediated oxidative C N bond cleavage of tertiary amines producing secondary amine was introduced, which was trapped by electrophiles (acyl chloride and sulfonyl chloride) to form amides and sulfonamides. The reaction could take place… read more here.
Keywords: bond cleavage; tertiary amines; oxidative bond; kmno4 mediated ... See more keywords
Photo-induced coupling of tertiary amines with Ugi-derived dehydroalanines as a practical device in the synthesis to 2,4-diaminobutyric acid derivatives
Sign Up to like & getrecommendations! Published in 2019 at "Tetrahedron Letters"
DOI: 10.1016/j.tetlet.2019.151152
Abstract: Abstract An Ir-mediated photocatalytic coupling of tertiary amines with Ugi-dehydroalanines was developed as an entry to medicinally important 2,4-diaminobutyric acid derivatives. In the process the 2,4-diaminobutyric acid framework is assembled directly embedded into a peptoide… read more here.
Keywords: tertiary amines; diaminobutyric acid; acid derivatives; amines ugi ... See more keywords
Preparation of Tertiary Amines from Tris(2-cyanoethyl)amine Using Three Successive Cobalt-Catalyzed Electrophilic Aminations with Organozinc Halides.
Sign Up to like & getrecommendations! Published in 2020 at "Organic letters"
DOI: 10.1021/acs.orglett.0c00297
Abstract: We report a stepwise preparation of triple alkylated or arylated tertiary amines, starting from commercially available tris(2-cyanoethyl)amine using three successive reaction sequences involving a selective oxidation (formation of an N-oxide followed by a Cope elimination)… read more here.
Keywords: amine using; tris cyanoethyl; tertiary amines; using three ... See more keywords
Tertiary Amines Acting as Alkyl Radical Equivalents Enabled by a P/N Heteroleptic Cu(I) Photosensitizer.
Sign Up to like & getrecommendations! Published in 2020 at "Organic letters"
DOI: 10.1021/acs.orglett.0c03236
Abstract: An unprecedented exploration of tertiary amines as alkyl radical equivalents for cross-coupling with aromatic alkynes to access allylarenes has been achieved by a P/N heteroleptic Cu(I)-based photosensitizer under photoredox catalysis conditions. Mechanistic studies reveal that… read more here.
Keywords: tertiary amines; acting alkyl; radical equivalents; alkyl radical ... See more keywords
Deaminative Cyclization of Tertiary Amines for the Synthesis of 2-Arylquinoline Derivatives with a Nonsubstituted Vinylene Fragment.
Sign Up to like & getrecommendations! Published in 2022 at "Organic letters"
DOI: 10.1021/acs.orglett.2c03904
Abstract: With triethylamine as a vinylene source, a convenient protocol for the regioselective synthesis of β,γ-nonsubstituted 2-arylquinolines from aldehydes and arylamines has been accomplished. The deaminative cyclization is also extended to long-chain tertiary alkylamines, enabling diverse… read more here.
Keywords: cyclization tertiary; deaminative cyclization; amines synthesis; tertiary amines ... See more keywords
A Chiral Amine Transfer Approach to the Photocatalytic Asymmetric Synthesis of α-Trialkyl-α-tertiary Amines
Sign Up to like & getrecommendations! Published in 2023 at "Organic Letters"
DOI: 10.1021/acs.orglett.2c04308
Abstract: A long-standing challenge within radical chemistry is that of controlling the absolute stereochemistry of the products. Here, we report the stereocontrolled addition of α-amino radicals reductively generated from imines via visible-light-mediated photoredox-catalysis to alkenes, giving… read more here.
Keywords: tertiary amines; transfer approach; chiral amine; trialkyl tertiary ... See more keywords
Indolization of N-Aryl Tertiary Amines with Diazoacetates by a Single Organophotocatalyst.
Sign Up to like & getrecommendations! Published in 2023 at "Organic letters"
DOI: 10.1021/acs.orglett.3c01288
Abstract: Diazoacetates are widely used to synthesize highly valuable indoles. Previous research has focused on using metal carbene reactivity or the innate nucleophilicity of the diazoacetates to create indoles through a traditional two-electron pathway. However, these… read more here.
Keywords: organophotocatalyst; amines diazoacetates; single organophotocatalyst; aryl tertiary ... See more keywords
Metal-Free Diaryl Etherification of Tertiary Amines by Ortho-C(sp2)-H Functionalization for Synthesis of Dibenzoxazepines and -ones.
Sign Up to like & getrecommendations! Published in 2017 at "Organic letters"
DOI: 10.1021/acs.orglett.7b03328
Abstract: A phenyliodine(III) diacetate mediated umpolung reactivity of the tertiary amines with suitably substituted o-hydroxybenzyl and phenyl groups is exploited to facilitate o-C(sp2)-H functionalization to afford diaryl ethers. The presence of an o-CHO and secondary amine… read more here.
Keywords: diaryl; sp2 functionalization; tertiary amines; synthesis dibenzoxazepines ... See more keywords
Palladium-Catalyzed Hydroaminocarbonylation of Alkynes with Tertiary Amines via C-N Bond Cleavage.
Sign Up to like & getrecommendations! Published in 2017 at "Organic letters"
DOI: 10.1021/acs.orglett.7b03331
Abstract: An efficient strategy for the cleavage of the C-N bond of tertiary amines was developed with DTBP as an oxidant, in which the cleaved H atom and amine moiety were successfully transferred to the desired… read more here.
Keywords: hydroaminocarbonylation alkynes; tertiary amines; bond; palladium catalyzed ... See more keywords