Pre-treatment of polyethylene terephthalate by Grignard reagents for high quality polypyrrole coatings and for altering the hydrophobicity
Sign Up to like & getrecommendations! Published in 2017 at "Chemical Papers"
DOI: 10.1007/s11696-017-0235-3
Abstract: Polypyrrole-coated polyethylene terephthalate is very attractive for various applications as electrically conductive fiber. This paper investigates the importance of polyester pre-treatment on the quality of the polypyrrole coating and its conductivity efficiency. The results showed… read more here.
Keywords: grignard reagents; polyethylene terephthalate; quality; altering hydrophobicity ... See more keywords
Stereoselective addition of Grignard reagents to sulfinimines derived from tartrate diol (threitol): Generation of chiral building blocks for the collective total synthesis of lentiginosine, conhydrine and methyldihydropalustramate
Sign Up to like & getrecommendations! Published in 2019 at "Tetrahedron"
DOI: 10.1016/j.tet.2019.130496
Abstract: Abstract A systematic investigation of the addition of Grignard reagents to sulfinimines derived from tartaric acid diol was undertaken. It was observed that the chirality of the inherent tartrate moiety influences the diastereoselectivity of the… read more here.
Keywords: sulfinimines derived; addition grignard; building blocks; collective total ... See more keywords
Cobalt-Catalyzed Cross-Couplings between Alkyl Halides and Grignard Reagents.
Sign Up to like & getrecommendations! Published in 2020 at "Accounts of chemical research"
DOI: 10.1021/acs.accounts.0c00238
Abstract: ConspectusMetal-catalyzed cross-couplings have emerged as essential tools for the construction of C-C bonds. The identification of efficient catalytic systems as well as large substrate scope made these cross-couplings key reactions to access valuable molecules ranging… read more here.
Keywords: cross couplings; alkyl halides; grignard reagents; cobalt catalyzed ... See more keywords
Structural Insights into the Nature of Fe0 and FeI Low-Valent Species Obtained upon the Reduction of Iron Salts by Aryl Grignard Reagents.
Sign Up to like & getrecommendations! Published in 2017 at "Inorganic chemistry"
DOI: 10.1021/acs.inorgchem.6b02616
Abstract: Mechanistic studies of the reduction of FeIII and FeII salts by aryl Grignard reagents in toluene/tetrahydrofuran mixtures in the absence of a supporting ligand, as well as structural insights regarding the nature of the low-valent… read more here.
Keywords: reduction; grignard reagents; low valent; salts aryl ... See more keywords
Highly Selective C-F Bond Functionalization of Tetrasubstituted gem-Difluoroalkenes and Trisubstituted Monofluoroalkenes Using Grignard Reagents.
Sign Up to like & getrecommendations! Published in 2022 at "Organic letters"
DOI: 10.1021/acs.orglett.2c01639
Abstract: We herein describe selective C-F bond functionalizations of tetrasubstituted gem-difluoroalkenes and trisubstituted monofluoroalkenes using Grignard reagents without the transition metal catalyst. β,β-Difluoroacrylates react with Grignard reagents under mild conditions to afford tetrasubstituted (E)-β-monofluoroacrylates. Experimental and… read more here.
Keywords: difluoroalkenes trisubstituted; grignard reagents; tetrasubstituted gem; gem difluoroalkenes ... See more keywords
1,1-Carboamination of Terminal Alkenes via a Reaction of Azo-Ene Adducts with Grignard Reagents.
Sign Up to like & getrecommendations! Published in 2022 at "Organic letters"
DOI: 10.1021/acs.orglett.2c02585
Abstract: Facile conversion of petrochemical feedstocks into valuable amine molecules remains a long-standing challenge in organic chemistry. Here, we report a modular and practical alkene 1,1-carboamination technology that relies on sequential azo-ene reactions and attendant base-promoted… read more here.
Keywords: terminal alkenes; grignard reagents; adducts grignard; ene adducts ... See more keywords
Catalytic Access to 4-(sec-Alkyl)Anilines via 1,6-Conjugate Addition of Grignard Reagents to in Situ Generated aza-p-Quinone Methides
Sign Up to like & getrecommendations! Published in 2022 at "Organic Letters"
DOI: 10.1021/acs.orglett.2c02786
Abstract: The synthesis of aniline derivatives, common building blocks in many pharmaceuticals, agrochemicals, dyes or polymers, has been limited to reactions based on benzene-toluene-xylene derivatives (BTX) due to their ample availability. Despite the large number of… read more here.
Keywords: addition grignard; grignard reagents; alkyl anilines; aza quinone ... See more keywords
Co-Catalyzed Dual C5/C8-H Bond Functionalization of Imidazo[1,2-a]pyrazines with Disulfides and Grignard Reagents.
Sign Up to like & getrecommendations! Published in 2022 at "Organic letters"
DOI: 10.1021/acs.orglett.2c02937
Abstract: An efficient difunctionalization at C5/C8 of imidazo[1,2-a]pyrazines has been developed using disulfides and Grignard reagents under cheap cobalt catalysis. This one-pot, two-step, three-component transformation is performed under mild conditions; various Grignard reagents (aryl and alkyl)… read more here.
Keywords: grignard reagents; imidazo pyrazines; catalyzed dual; dual bond ... See more keywords
Synthesis of Unsymmetrical Tertiary Phosphine Oxides via Sequential Substitution Reaction of Phosphonic Acid Dithioesters with Grignard Reagents.
Sign Up to like & getrecommendations! Published in 2017 at "Organic letters"
DOI: 10.1021/acs.orglett.7b01796
Abstract: A facile synthetic method for unsymmetrical tertiary phosphine oxides is reported. Sequential treatment of phosphonodithioic acid S,S-di(p-tolyl) esters with two Grignard reagents enabled the stepwise introduction of different carbon substituents on the phosphorus atom. The… read more here.
Keywords: unsymmetrical tertiary; grignard reagents; tertiary phosphine; phosphine oxides ... See more keywords
Synthesis of N, N-Alkylated α-Tertiary Amines by Coupling of α-Aminoalkyltrifluoroborates and Grignard Reagents.
Sign Up to like & getrecommendations! Published in 2018 at "Organic letters"
DOI: 10.1021/acs.orglett.8b01613
Abstract: The cross-coupling of α-aminoalkyltrifluoroborates and Grignard reagents to form N, N-substituted α-tertiary amines (ATAs) is reported. Key to the success of this reaction is the unexpected oxidation of the α-aminoalkyltrifluoroborate to the corresponding iminium cation… read more here.
Keywords: aminoalkyltrifluoroborates grignard; grignard reagents; synthesis alkylated; tertiary amines ... See more keywords
Enantioselective Catalytic Dearomative Addition of Grignard Reagents to 4-Methoxypyridinium Ions
Sign Up to like & getrecommendations! Published in 2021 at "ACS Catalysis"
DOI: 10.1021/acscatal.1c01544
Abstract: We describe a general catalytic methodology for the enantioselective dearomative alkylation of pyridine derivatives with Grignard reagents, allowing direct access to nearly enantiopure chiral dihydro-4-pyridones with yields up to 98%. The methodology involves dearomatization of… read more here.
Keywords: methodology; catalytic dearomative; grignard reagents; dearomative addition ... See more keywords