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Sato, Akinori,Yorimitsu, Hideki,Oshima, Koichiro Korean Chemical Society 2010 Bulletin of the Korean Chemical Society Vol.31 No.3
A variety of ynamides undergo highly regio- and stereoselective radical addition of arenethiols with the aid of triethylborane as a radical initiator. The products, N-[(Z)-2-arylsulfanyl-1-alkenyl]amides, can be reduced with triethylsilane in trifluoroacetic acid to yield N-[2-(arylsulfanyl)alkyl]amides.
Akinori Sato,Hideki Yorimitsu,Koichiro Oshima 대한화학회 2010 Bulletin of the Korean Chemical Society Vol.31 No.3
A variety of ynamides undergo highly regio- and stereoselective radical addition with arenethiols with the aid of triethylborane as a radical initiator. The products, N-[(Z)-2-arylsulfanyl-1-alkenyl]amides, can be reduced with triethylsilane in trifluoroacetic acid to yield N-[2-(arylsulfanyl)alkyl]amides
Son, Minjung,Sung, Young Mo,Tokuji, Sumito,Fukui, Norihito,Yorimitsu, Hideki,Osuka, Atsuhiro,Kim, Dongho The Royal Society of Chemistry 2014 Chemical communications Vol.50 No.23
<P>Two meso-meso vinylene-bridged Zn(II) porphyrin dimers 1 and 2 were analyzed in terms of the control of their conformational dynamics induced by the rotation around the double bond bridge. The dihedral angles between the two porphyrin rings were modulated through coordination with alpha,omega-diaminoalkanes of varying chain lengths.</P>
Fukui, Norihito,Lee, Seung-Kyu,Kato, Kenichi,Shimizu, Daiki,Tanaka, Takayuki,Lee, Sangsu,Yorimitsu, Hideki,Kim, Dongho,Osuka, Atsuhiro Royal Society of Chemistry 2016 Chemical science Vol.7 No.7
<▼1><P>Oxidation of 10,15,20-triaryl Ni(<SMALL>II</SMALL>)-porphyrins bearing an electron-withdrawing substituent at the 5-position with DDQ and FeCl<SUB>3</SUB> gave 10,12- and 18,20-doubly phenylene-fused Ni(<SMALL>II</SMALL>)-porphyrins regioselectively.</P></▼1><▼2><P>Oxidation of 10,15,20-triaryl Ni(<SMALL>II</SMALL>)-porphyrins bearing an electron-withdrawing substituent at the 5-position with DDQ and FeCl<SUB>3</SUB> gave 10,12- and 18,20-doubly phenylene-fused Ni(<SMALL>II</SMALL>)-porphyrins regioselectively. A doubly phenylene-fused <I>meso</I>-chloro porphyrin thus prepared was reductively coupled to give a <I>meso</I>–<I>meso</I> linked dimer, which was further converted to a quadruply phenylene-fused <I>meso</I>–<I>meso</I>, β–β, β–β triply linked Zn(<SMALL>II</SMALL>)–diporphyrin <I>via</I> inner-metal exchange followed by oxidation with DDQ and Sc(OTf)<SUB>3</SUB>. As compared to the usual <I>meso</I>–<I>meso</I>, β–β, β–β triply linked Zn(<SMALL>II</SMALL>)-diporphyrin, this π-extended porphyrin dyad exhibits a smaller HOMO–LUMO gap and a larger two-photon absorption cross-section.</P></▼2>