http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Eom, Dahan,Jeong, Yeonseok,Kim, Yea Rin,Lee, Euichul,Choi, Wonseok,Lee, Phil Ho American Chemical Society 2013 Organic letters Vol.15 No.20
<P>An efficient synthetic method of benzoxaphosphole 1- and 2-oxides is reported from phosphonic and phosphinic acids without prefunctionalization through a Pd-catalyzed C(sp<SUP>2</SUP> and sp<SUP>3</SUP>)–H activation/C–O bond formation under aerobic conditions.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/orlef7/2013/orlef7.2013.15.issue-20/ol402736v/production/images/medium/ol-2013-02736v_0007.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/ol402736v'>ACS Electronic Supporting Info</A></P>
Dahan Eom,김성홍,이필호 대한화학회 2010 Bulletin of the Korean Chemical Society Vol.31 No.3
An efficient synthetic method of Z-selective 3-ethoxycarbonyl-2-halo-1,3-dienes and 3-vinyl-2-halo-1,3-dienes was developed from the reaction of allenols having ethoxycarbonyl and vinyl group with indium trihalides at room temperature in CH₂Cl₂.
Eom, Dahan,Mo, Juntae,Lee, Phil Ho,Gao, Zhiming,Kim, Sunggak WILEY‐VCH Verlag 2013 European Journal of Organic Chemistry Vol.2013 No.3
<P><B>Abstract</B></P><P>A synthetic method was developed for the preparation of vinyl sulfides and vinylamines from arylalkynyl phenyl sulfides and sulfonamides. Under mild conditions, a catalytic intramolecular hydroarylation reaction was carried out in the presence of FeCl<SUB>3</SUB> and AgOTf (OTf = trifluoromethanesulfonate) in 1,2‐dichloroethane. A variety of 1,2‐dihydronaphthalenes, 2<I>H</I>‐chromenes, and 1,2‐dihydroquinolines containing a phenylsulfenyl or <I>N</I>‐phenyl‐<I>N</I>‐tosyl group on the sp<SUP>2</SUP>‐hybridized benzylic carbon were prepared in good to excellent yields. The present method could be extended to the preparation of dihydropyrano[2,3‐<I>g</I>]chromenes through a twofold Fe‐catalyzed hydroarylation by a selective 6‐<I>endo</I> mode.</P>
Mo, Juntae,Eom, Dahan,Lee, Euichul,Lee, Phil Ho American Chemical Society 2012 ORGANIC LETTERS Vol.14 No.14
<P>We have developed a hybrid system of metal/Brønsted acid relay catalysis for the intramolecular double hydroarylation and cationic cyclization of diyne diethers and diamines to give 4,4′-bi(2<I>H</I>-chromene), bi(2<I>H</I>-quinoline), and dioxafluoranthenes starting from 2,4-diyne-1,6-diethers and diamines in one reaction vessel under mild conditions.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/orlef7/2012/orlef7.2012.14.issue-14/ol301522y/production/images/medium/ol-2012-01522y_0006.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/ol301522y'>ACS Electronic Supporting Info</A></P>
Mo, Juntae,Eom, Dahan,Kim, Sung Hong,Lee, Phil Ho The Chemical Society of Japan 2011 Chemistry letters Vol.40 No.9
<P>Pd-Catalyzed carbon–sulfur cross-coupling reactions of aryl chlorides with indium tris(organothiolates) were developed. Aryl chlorides reacted with indium tris(organothiolates) (0.35 equiv) in the presence of 4 mol % of Pd(OAc)<SUB>2</SUB>, 4.2 mol % of Xantphos, and Cs<SUB>2</SUB>CO<SUB>3</SUB> as an additive, producing aryl–aryl and aryl–alkyl sulfides in good to excellent yields.</P>
Ryu, Taekyu,Eom, Dahan,Shin, Seohyun,Son, Jeong-Yu,Lee, Phil Ho American Chemical Society 2017 ORGANIC LETTERS Vol.19 No.3
<P>A palladium-catalyzed propargyl substitution reaction of propargyl acetates with indium organothiolates is developed for the synthesis of multisubstituted allenyl sulfides. This procedure can be applied to the synthesis of multisubstituted furans and pyrroles via tandem palladium-catalyzed propargyl substitution and cydoisomerization reaction in one pot.</P>
Palladium-Catalyzed Multialkynyl Cross-Coupling Reactions with Tetraalkynylindates
Kang, Dongjin,Eom, Dahan,Kim, Hyunseok,Lee, Phil Ho WILEY-VCH Verlag 2010 European Journal of Organic Chemistry Vol.2010 No.12
<P>An efficient Pd-catalyzed multialkynyl cross-coupling reaction performed with tetraalkynylindates generated in situ from the reaction of 1 equiv. of indium trichloride with 4 equiv. of organometallic reagents has been developed to produce symmetric as well as unsymmetric multialkynyl-substituted aromatic compounds in good-to-excellent yields. In these reactions, the four acetylide groups in the tetraalkynylindates transferred effectively to a variety of aryl bromides.</P> <B>Graphic Abstract</B> <P>An efficient Pd-catalyzed multialkynyl cross-coupling reaction using in-situ-generated tetraalkynylindates leading to symmetric and unsymmetric multialkynyl aromatic compounds was developed. The fouracetylide groups of the tetraalkynylindates can be transferred effectively to a variety of aryl bromides with high atom efficiency. <img src='wiley_img_2010/1434193X-2010-2010-12-EJOC201000027-fig000.gif' alt='wiley_img_2010/1434193X-2010-2010-12-EJOC201000027-fig000'> </P>
Mo, Juntae,Kang, Dongjin,Eom, Dahan,Kim, Sung Hong,Lee, Phil Ho American Chemical Society 2013 Organic letters Vol.15 No.1
<P>Tandem gold-catalyzed addition of alkynyl phosphonic acid monoethyl esters to terminal alkynes and cyclization were developed for the synthesis of 4,6-disubstituted phosphorus 2-pyrones in one reaction vessel based on the concept of sequential alkyne activation. Alkynyl enol phosphonates were selectively obtained through the gold-catalyzed addition reaction in the presence of a catalytic amount of triethylamine. Also, gold-catalyzed cyclization of alkynyl enol phosphonates was successful in giving a variety of 4,6-disubstituted phosphorus 2-pyrones.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/orlef7/2013/orlef7.2013.15.issue-1/ol3029274/production/images/medium/ol-2012-029274_0010.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/ol3029274'>ACS Electronic Supporting Info</A></P>