Zobrazeno 1 - 10
of 751
pro vyhledávání: '"Yumi Heo"'
Autor:
Deborah Stevenson
Publikováno v:
Bulletin of the Center for Children's Books. 73:477-477
Autor:
Engberg, Gillian1
Publikováno v:
Book Links. Jan2004, Vol. 13 Issue 3, p49-53. 5p.
Autor:
Yumi Heo
Like most rebellious children, the green frogs in this Korean folktale love to disobey their mother. What-ever she asks them to do, they do the opposite... until their bad habit lands them in trouble.
Autor:
Byeri Yoon, Seungwook Shin, Youngmin Kim, Yumi Heo, Soyeon Park, Sungho Choi, Miyeon Han, Sanghak Lim
Publikováno v:
Proceedings of SPIE; 1/23/2019, Vol. 10960, p1-6, 6p
Publikováno v:
Organic Letters. 15:3322-3325
A metal-free decarboxylative three-component coupling reaction was developed. When alkynyl carboxylic acids, paraformaldehyde, and amines were reacted in CH3CN at 65 °C for 3 h, the desired propargylamines were obtained in good yields. This coupling
Publikováno v:
Tetrahedron Letters. 53:6657-6661
CuO nanoflakes bound on polystyrene beads (PS-CuO) were prepared through the oxidation of copper(I) bromide in a suspension of polystyrene. The use of PS-CuO as a catalyst in the presence of KO t Bu in the coupling reactions of aryl bromides and amin
Publikováno v:
Inorganic Chemistry Communications. 23:1-5
(Salen-OH)Pd (1, salen-OH N,N′-bis(3,5-di-hydroxysalicylidene)-ethylenediamine) was prepared by a simple one step reaction and fully characterized by 1H and 13C NMR, IR spectroscopy, and X-ray crystallography. This palladium complex showed good act
Publikováno v:
European Journal of Organic Chemistry. 2012:1984-1993
Copper-catalyzed one-pot three-component reactions of 2-iodoanilines, aldehydes, and NaSH·n H2O afford benzothiazoles in good yields. When CuCl was employed as a catalyst in the absence of a ligand, a variety of aromatic aldehydes and substituted 2-
Publikováno v:
ChemInform. 44
A metal-free decarboxylative three-component coupling reaction was developed. When alkynyl carboxylic acids, paraformaldehyde, and amines were reacted in CH3CN at 65 °C for 3 h, the desired propargylamines were obtained in good yields. This coupling