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A deprotonation pathway to reactive [B]=CH2 boraalkenes
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SYSNO ASEP 0557502 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title A deprotonation pathway to reactive [B]=CH2 boraalkenes Author(s) Škoch, Karel (UACH-T) SAI, ORCID, RID
Chen, C. (DE)
Daniliuc, C. G. (DE)
Kehr, G. (DE)
Erker, G. (DE)Number of authors 5 Source Title Dalton Transactions. - : Royal Society of Chemistry - ISSN 1477-9226
Roč. 51, č. 19 (2022), s. 7695-7704Number of pages 10 s. Language eng - English Country GB - United Kingdom Keywords Alkylation ; Carbon monoxide ; Cycloaddition ; Sulfur dioxide Subject RIV CA - Inorganic Chemistry OECD category Inorganic and nuclear chemistry Method of publishing Limited access Institutional support UACH-T - RVO:61388980 UT WOS 000791976800001 EID SCOPUS 85131587270 DOI https://doi.org/10.1039/d2dt01193j Annotation The BH compounds IMes(Ar-F)BH(NTf2) (Ar-F : C6F5 or FpXyl) were converted to the IMes(Ar-F)B=CH2 boraalkenes in a three step reaction sequence of B-methylation with methyllithium, hydride abstraction and deprotonation. The B = CH2 boraalkenes reacted with elemental sulfur to give a thiaborirane product. They underwent [2+2] cycloaddition reactions with carbon dioxide or sulfur dioxide to give four-membered boron containing heterocycles. The boraalkenes added strongly Lewis acidic boranes at their = CH2 carbon atoms. The corresponding HB(C6F5)(2)/boraalkene adduct reduced carbon monoxide to aOCH(C6F5)- moiety inside a five-membered heterocycle at the B-CH2-B template. The boraalkenes reacted with the [(Me2S)AuCl] reagent to form the corresponding (boraalkene)AuCl complexes. Workplace Institute of Inorganic Chemistry Contact Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931 Year of Publishing 2023 Electronic address https://doi.org/10.1039/D2DT01193J
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