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of 77
pro vyhledávání: '"Hong Jung Lee"'
Autor:
Hong‐jung, Lee
Publikováno v:
International Review of Mission. Nov2016, Vol. 105 Issue 2, p321-335. 15p.
Autor:
Hong-Jung, Lee
Publikováno v:
International Review of Mission. Oct2002, Vol. 91 Issue 363, p577. 6p.
Publikováno v:
ChemInform. 30
Hong Jung Lee, Mi Ra Seong, Hyun Nam Song, and Jae Nyoung Kim*Department of Chemistry, Chonnam National University, Kwangju 500-757, KoreaReceived December 18, 1998Communications to the Editor Bull. Korean Chem. Soc. 1999, Vol. 20, No. 3 267Friedel-C
Publikováno v:
ChemInform. 31
Hyun Nam Song, Hong Jung Lee, Tae Yi Kim, and Jae Nyoung Kim*Department of Chemistry, Chonnam National University, Kwangju 500-757, KoreaReceived June 24, 1999Recently, Friedel-Crafts type reactions of some cyclicketone systems such as ninhydrin, all
Publikováno v:
Tetrahedron Letters. 43:9141-9146
Enantiomerically enriched Baylis–Hillman alcohols 2a – d ( S ) were prepared in 25–42% yields with optical purities of 54–92% ee by using the combined concept of kinetic resolution during the salt formation of racemic Baylis–Hillman acetate
Publikováno v:
Tetrahedron Letters. 42:3737-3740
3-Quinolinecarboxylic acid ethyl esters 4 were prepared from 1 , the Baylis–Hillman adducts of o -halobenzaldehyde N -tosylimines, in a one-pot reaction.
Publikováno v:
Tetrahedron Letters. 41:2613-2616
The reaction of the Baylis–Hillman adducts 1a – g and trifluoroacetic acid at 30–70°C gave the rearranged cinnamyl alcohols 2a – g stereoselectively in moderate yields.
Publikováno v:
Synthetic Communications. 30:1057-1066
The reaction of ninhydrin with 1,2,3- and 1,2,4-trimethylbenzene in the presence of H2SO4 or AlCl3 afforded 2-monoaryl and 2,2-diaryl-1,3-indanedione derivatives as the major products. With 1,3,5-trimethylbenzene as the arene nucleophile, either a re
Publikováno v:
Synthetic Communications. 29:4375-4379
Methyl acetopyruvate undergoes self condensation reaction in the presence of 1,4-diazabicyclo[2.2.2]octane (DABCO) to give tetrahydrofuran-2,3-dione derivative. This compound exist as its enol form complexed with DABCO.
Publikováno v:
Synthetic Communications. 29:3303-3311
Friedel-Crafts type reactions of phenol derivatives with some cyclic ketones such as ninhydrin (1), alloxan (2), isatin (3), and parabanic acid (4) were examined. 2-Monoaryl- and 2,2-diaryl-1,3-indanedione derivatives were obtained depending on the a