Vinylsilanes in Highly Diastereo- and Regio-Selective Synthesis of Dihydropyrans
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DOI: 10.1021/acsomega.8b03635
Abstract: Borontrifluoride etherate (BF3·OEt2) can be efficiently used for the synthesis of dihydropyrans from triethylsilyl homoallylic alcohols and aldehydes in good yields. The reaction is highly diastereo- and regio-selective. read more here.
Keywords: highly diastereo; diastereo regio; synthesis dihydropyrans; regio selective ... See more keywords
Regio-selective and stereo-selective hydrosilylation of internal alkynes catalyzed by ruthenium complexes
Sign Up to like & getrecommendations! Published in 2018 at "RSC Advances"
DOI: 10.1039/c8ra04083d
Abstract: In this study, ruthenium(II)-catalyzed direct hydrosilylation of internal alkynes with high regio-selectivity and stereo-selectivity is reported. This title transformation led to various vinylsilanes in good to excellent yields. This approach features mild reaction conditions, low… read more here.
Keywords: ruthenium; stereo; internal alkynes; hydrosilylation internal ... See more keywords
Metallaphotoredox-catalyzed C–H activation: regio-selective annulation of allenes with benzamide
Sign Up to like & getrecommendations! Published in 2021 at "Organic chemistry frontiers"
DOI: 10.1039/d0qo01127d
Abstract: We have developed an efficient annulation of benzamides with allenes using cobalt and photoredox dual catalysis under an oxygen atmosphere. This reaction provides a mild and environmentally friendly method for the construction of isoquinolinone scaffolds… read more here.
Keywords: annulation; metallaphotoredox catalyzed; catalyzed activation; regio selective ... See more keywords
Angularly fused diaza-dinaphthopyrenes: regio-selective synthesis, crystal structures and isomer-dependent mechanochromic fluorescent properties
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DOI: 10.1039/d2sc05608a
Abstract: We report a one-pot synthesis of a series of unprecedented angular-fused diaza-dinaphthopyrene isomers (1,8-DNPy and 1,6-DNPy) in high yields, which are enabled by regio-selective Bischler–Napieralski cyclization to fuse two quinolone rings either on the same… read more here.
Keywords: fluorescent properties; isomer dependent; fluorescent; crystal structures ... See more keywords
Regio-selective synthesis and activity research on 7-icaritin norcantharidin conjugates.
Sign Up to like & getrecommendations! Published in 2022 at "Natural product research"
DOI: 10.1080/14786419.2022.2121828
Abstract: Due to complexity of tumor diseases and resistance of targeted drug, targeted drug usually cannot meet the needs of cancer treatment. Therefore, the conjugate constructed by two anticancer agents maybe a better solution for the… read more here.
Keywords: selective synthesis; synthesis activity; icaritin; regio selective ... See more keywords