Catalytic diastereoselective and enantioconvergent C(sp3)—C(sp3) cross-coupling of racemic partners
Sign Up to like & getrecommendations! Published in 2020 at "Science China Chemistry"
DOI: 10.1007/s11426-020-9745-1
Abstract: Carbon-carbon bond formation is the core of organic synthesis. Transition metal-catalyzed cross-coupling reaction between organohalides and organometallic reagents is one of the most important and straightforward methods for construction of C–C bonds. The catalytic cross… read more here.
Keywords: sp3; bond; carbon centers; cross ... See more keywords
Construction of Vicinal Quaternary Carbon Centers via Cobalt-Catalyzed Asymmetric Reverse Prenylation.
Sign Up to like & getrecommendations! Published in 2019 at "Organic letters"
DOI: 10.1021/acs.orglett.8b04030
Abstract: A highly enantioselective cobalt-catalyzed reverse prenylation of β-ketoester with tertiary allylic carbonate to construct vicinal all-carbon quaternary carbon centers has been developed. By using the cobalt/( S, S)Ph-BPE complex generated in situ with zinc reduction,… read more here.
Keywords: carbon; cobalt; reverse prenylation; carbon centers ... See more keywords
Structure and Properties of Poly-α-olefins Containing Quaternary Carbon Centers
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DOI: 10.1021/acsomega.9b04361
Abstract: In this paper, poly-α-olefins (PAO) containing quaternary carbon centers were prepared by two-step oligomerization using a metallocene catalyst followed by a Ziegler–Natta catalyst. First, the 1-decene dimer was oligomerized with [t-BuN(Me)2C(η5-C5H4)]ZrCl2, and the effects of… read more here.
Keywords: product; containing quaternary; carbon centers; quaternary carbon ... See more keywords
Chromium-catalyzed para-selective formation of quaternary carbon centers by alkylation of benzamide derivatives
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DOI: 10.1038/s41467-018-07069-1
Abstract: Selective creation of quaternary carbon centers has been a long-standing challenge in synthetic chemistry. We report here the chromium-catalyzed, para-selective formation of arylated quaternary carbon centers by alkylative reactions of benzamide derivatives with tertiary alkylmagnesium… read more here.
Keywords: chromium catalyzed; carbon; carbon centers; para selective ... See more keywords
Constructing chiral aza-quaternary carbon centers by enantioselective carbonylative Heck reaction of o-iodoanilines with allenes
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DOI: 10.1039/d0qo01486a
Abstract: The construction of chiral aza-quaternary carbon centers via C–N bond formation has been achieved by a palladium-catalyzed asymmetric carbonylative Heck reaction of o-iodoanilines with allenes, providing chiral dihydroquinolinone derivatives with moderate to high yield and… read more here.
Keywords: chiral aza; aza quaternary; carbon centers; quaternary carbon ... See more keywords
Pd-Catalyzed umpolung asymmetric allylic alkylation of hydrazones to vicinal tertiary and quaternary chiral carbon centers.
Sign Up to like & getrecommendations! Published in 2022 at "Chemical communications"
DOI: 10.1039/d1cc07074f
Abstract: Diastereo- and enantioselective construction of vicinal tertiary and quaternary carbon centers is a great challenge in synthetic chemistry. Herein, we report a facile and efficient protocol to construct vicinal tertiary and quaternary chiral carbon centers… read more here.
Keywords: quaternary chiral; chiral carbon; carbon centers; vicinal tertiary ... See more keywords
Recent Advances in Asymmetric Catalytic Construction of Oxa-Quaternary Carbon Centers
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DOI: 10.1039/d3qo00527e
Abstract: Compounds bearing oxa-quaternary carbon centers, such as chiral tertiary alcohols, ethers, esters, and acetals are widely found in a number of bioactive compounds, natural products, agrochemicals and drugs. Besides, they... read more here.
Keywords: oxa quaternary; carbon centers; quaternary carbon; advances asymmetric ... See more keywords