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Published in 2019 at "Journal of Organometallic Chemistry"
DOI: 10.1016/j.jorganchem.2019.07.016
Abstract: Abstract Enantioselectivity up to 75% ee has been achieved for an intramolecular [4 + 3] cycloaddition reaction with a series of chiral gold(I) complexes. Nine new chiral NHC–Au(I) complexes featuring disilylbiphenyl derived chiral N-heterocyclic carbene ligands were…
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Keywords:
single crystal;
cycloaddition;
crystal structure;
ray single ... See more keywords
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Published in 2018 at "Tetrahedron Letters"
DOI: 10.1016/j.tetlet.2018.05.020
Abstract: Abstract An efficient “one-pot” method for the synthesis of substituted 1,2,3-triazole derivatives in excellent yields as single regioisomer is reported. The key transformation involves an atom-efficient tandem azidation, intramolecular [3+2]-cycloaddition and aromatization of acrylate derivatives…
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Keywords:
azidation intramolecular;
tandem azidation;
cycloaddition aromatization;
acrylate derivatives ... See more keywords
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Published in 2022 at "Organic letters"
DOI: 10.1021/acs.orglett.1c04232
Abstract: Herein we have developed the silver-catalyzed electronic- and steric-controlled intramolecular formal [2 + 2]-cycloaddition of alkyne-tethered cyclohexadienones. Substrates with electron-rich alkynes and a less hindered quaternary carbon center afford tricyclic fused cyclobutenes through 1,7-enyne cyclization.…
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Keywords:
controlled intramolecular;
electronic controlled;
intramolecular cycloaddition;
steric electronic ... See more keywords
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Published in 2018 at "Organic letters"
DOI: 10.1021/acs.orglett.8b01720
Abstract: An efficient method to build various multisubstituted polycyclic indoline-annulated normal to medium-size rings through dearomatization of indole via a tandem 1,2-acyloxy migration/intramolecular [3 + 2] cycloaddition process is described. The pentacyclic skeleton of strychnine could…
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Keywords:
cycloaddition;
indole via;
intramolecular cycloaddition;
dearomatization indole ... See more keywords
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Published in 2019 at "Organic letters"
DOI: 10.1021/acs.orglett.8b03810
Abstract: Synthetic studies toward the ent-kauranoid family of diterpene natural products are reported. An intramolecular (4 + 3) cycloaddition allows the direct elaboration of diverse natural product frameworks, encompassing a challenging bicyclo[3.2.1]octane core. The established routes…
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Keywords:
intramolecular cycloaddition;
cycloaddition approach;
kauranoid family;
family diterpene ... See more keywords
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Published in 2019 at "Organic Chemistry Frontiers"
DOI: 10.1039/c9qo00403c
Abstract: A Rh(i) catalyzed [2 + 2 + 1] cycloaddition of intramolecular diynes and a diazo moiety has been reported, in which the dediazoniation does not occur and the terminal nitrogen of the diazo moiety serves…
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Keywords:
diynes terminal;
diazo;
cycloaddition;
catalyzed intramolecular ... See more keywords
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Published in 2018 at "Synlett"
DOI: 10.1055/s-0037-1609199
Abstract: An intramolecular [3+2] cycloaddition of trans -2-allene-vinylcyclopropanes for the synthesis of bicyclo[3.3.0]octane derivatives is developed.
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Keywords:
trans allene;
allene vinylcyclopropanes;
intramolecular cycloaddition;
cycloaddition trans ... See more keywords
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Published in 2018 at "Synlett"
DOI: 10.1055/s-0037-1610198
Abstract: The regioselectivity of the intramolecular [2+2] cycloaddition reaction of acyl ketenes formed from metastable mesoionic 1,3-oxazinium-4-olates was investigated by experimental and theoretical methods. The ring opening of the mesoionic N -allyl-2-(2-arylvinyl)-1,3-oxazinium-4-olates led to the formation…
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Keywords:
cycloaddition;
acyl ketenes;
intramolecular cycloaddition;
reaction ... See more keywords
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Published in 2020 at "Synthesis"
DOI: 10.1055/s-0040-1706547
Abstract: Inter- and intramolecular cycloaddition reactions of ethenetricarboxylates with styrenes and α-halostyrenes have been investigated. The reactions of ethenetricarboxylates with styrenes or α-bromostyrenes in the presence of SnCl4 or SnBr4 stereoselectively gave 2,4-cis-substituted cyclobutanes. The intramolecular…
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Keywords:
cycloaddition reactions;
intramolecular cycloaddition;
ethenetricarboxylates styrenes;
reactions ethenetricarboxylates ... See more keywords