P450 BM3‐Catalyzed Regio‐ and Stereoselective Hydroxylation Aiming at the Synthesis of Phthalides and Isocoumarins
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DOI: 10.1002/cbic.201600685
Abstract: Cytochrome P450 BM3 monooxygenases are able to catalyze the regio‐ and stereoselective oxygenation of a broad range of substrates, with promising potential for synthetic applications. To study the suitability of P450 BM3 variants for stereoselective… read more here.
Keywords: p450 bm3; synthesis phthalides; hydroxylation; phthalides isocoumarins ... See more keywords
Regio- and stereoselective reaction of sodium benzeneselenolate with 3-(trimethylsilyl)prop-2-ynamides
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DOI: 10.1007/s11172-019-2679-9
Abstract: Sodium benzeneselenolate adds regio- and stereoselectively to 3-(trimethylsilyl)prop-2-yn-amides to give (Z)-3-(phenylselanyl)prop-2-enamides. read more here.
Keywords: trimethylsilyl prop; prop; regio stereoselective; sodium benzeneselenolate ... See more keywords
Regio- and stereoselective synthesis of new spiro-isoxazolidines via 1,3-dipolar cycloaddition
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DOI: 10.1016/j.arabjc.2014.05.028
Abstract: Abstract New spiro-isoquinolinediones were prepared by regio- and stereoselective 1,3-dipolar cycloaddition of ( E )-4-arylidene- N -methyl-isoquinoline-1,3-dione derivatives 1a – d with C -aryl- N -phenylnitrones 2e – g . NMR studies confirmed that only… read more here.
Keywords: stereoselective synthesis; dipolar cycloaddition; new spiro; regio stereoselective ... See more keywords
2-Benzylindane radical cations in the gas phase (Part II): Substituent effects on regio- and stereoselective progressive hydrogen scrambling occurring prior to unimolecular fragmentation
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Mass Spectrometry"
DOI: 10.1016/j.ijms.2016.05.020
Abstract: Abstract In the present and in the preceding article, the unimolecular fragmentation of the radical cations of 2-benzylindane and eleven derivatives bearing meta - or para -substituents at the benzylic moiety have been studied with… read more here.
Keywords: hydrogen; regio stereoselective; radical cations; exchange ... See more keywords
Regio- and stereoselective functionalization of alkenes with emphasis on mechanistic insight and sustainability concerns
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DOI: 10.1016/j.jscs.2021.101260
Abstract: Abstract Alkene is an attractive substrate for chemists due to its easy availability and reactivity towards large number of reactants affording diverse range of organic compounds. It reacts under ionic and free radical mechanisms including… read more here.
Keywords: alkenes emphasis; functionalization; regio stereoselective; stereoselective functionalization ... See more keywords
Cu-catalyzed regio- and stereoselective sulfonylation of multi-substituted allenes
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DOI: 10.1016/j.tet.2018.12.031
Abstract: Abstract Regio- and stereoselective sulfonylation of allenes under Cu catalysis is described. Allenyl sp carbons exclusively react with TsCN to give the corresponding alkenyl sulfones. The reaction is initiated by addition of tosyl radical to… read more here.
Keywords: multi substituted; catalyzed regio; regio stereoselective; sulfonylation multi ... See more keywords
Pd-catalyzed Regio- and Stereoselective Hydrostannylation of an Alkyl Ethynyl Ether/One-Pot Stille Coupling Enables the Synthesis of 14-Membered Macrolactone of Luminamicin.
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DOI: 10.1021/acs.orglett.1c00183
Abstract: Regio- and stereoselective hydrostannylation of alkyl ethynyl ethers generates alkenyl ethers, which are useful building blocks in organic synthesis. This efficient synthetic method, however, is limited. Here, we report not only an efficient method for… read more here.
Keywords: stereoselective hydrostannylation; alkyl ethynyl; regio stereoselective; hydrostannylation alkyl ... See more keywords
Regio- and Stereoselective Electrochemical Alkylation of Morita–Baylis–Hillman Adducts
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DOI: 10.1021/acs.orglett.2c01529
Abstract: Electrosynthesis is effectively employed in a general regio- and stereoselective alkylation of Morita–Baylis–Hillman compounds. The exposition of N-acyloxyphthalimides (redox-active esters) to galvanostatic electroreductive conditions, following the sacrificial-anode strategy, is proved an efficient and practical method… read more here.
Keywords: morita baylis; regio stereoselective; baylis hillman; alkylation morita ... See more keywords
Palladium-Catalyzed Regio- and Stereoselective Hydroaminocarbonylation of Unsymmetrical Internal Alkynes toward α,β-Unsaturated Amides.
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DOI: 10.1021/acs.orglett.2c01693
Abstract: α,β-Unsaturated amides play a vital role in natural products, pharmaceuticals, organic synthesis, and functional materials. Herein, we disclosed a regio- and stereoselective hydroaminocarbonylation of unsymmetrical internal alkynes via palladium catalysis to synthesize α,β-unsaturated amides. This… read more here.
Keywords: internal alkynes; hydroaminocarbonylation unsymmetrical; unsymmetrical internal; regio stereoselective ... See more keywords
Highly Regio- and Stereoselective Intramolecular Rearrangement of Glycidol Acetal to Alkoxy Cyclic Acetals.
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DOI: 10.1021/acs.orglett.2c02397
Abstract: A new class of highly regio- and stereoselective intramolecular rearrangements of glycidol acetals to produce alkoxylated 1,3-dioxolane/1,3-dioxane is demonstrated. Selective Lewis acid activation of acetal generates an oxocarbenium ion that initiates the epoxide ring-opening event,… read more here.
Keywords: intramolecular rearrangement; rearrangement glycidol; glycidol acetal; regio stereoselective ... See more keywords
Regio- and Stereoselective Synthesis of β-Methylthio Vinyl Triflates.
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DOI: 10.1021/acs.orglett.2c02880
Abstract: Vinyl triflates are commonly employed as electrophilic vinyl sources in complex synthesis. The triflation of enolates is commonly required for the preparation of vinyl triflates, generally under strongly basic conditions. Herein, the reaction between alkynes… read more here.
Keywords: vinyl; synthesis methylthio; methylthio vinyl; vinyl triflates ... See more keywords