Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Sureeporn Ruengsangtongkul"'
Autor:
Kunlayanee Punjajom, Sureeporn Ruengsangtongkul, Jumreang Tummatorn, Praneet Paiboonsombat, Somsak Ruchirawat, Charnsak Thongsornkleeb
Publikováno v:
The Journal of Organic Chemistry.
Autor:
Charnsak Thongsornkleeb, Sureeporn Ruengsangtongkul, Takahito Kuribara, Nattawadee Chaisan, Jumreang Tummatorn, Somsak Ruchirawat
Publikováno v:
Synlett. 33:1329-1334
Unsymmetrical 1,1,2-triacylalkenes were conveniently prepared by the oxidative coupling of 1,3-keto esters with terminal alkynes by employing 4.0 equivalents of inexpensive ceric ammonium nitrate (CAN) as the oxidant in acetonitrile as the solvent at
Autor:
Charnsak Thongsornkleeb, Nattawadee Chaisan, Sureeporn Ruengsangtongkul, Jumreang Tummatorn, Somsak Ruchirawat
Publikováno v:
Synlett. 33:1426-1430
A mild and convenient method for the synthesis of 2,2-dihaloketones and gem-dihalolactols has been developed. For the synthesis of 2,2-dihaloketones, alkynes were employed as substrates to react with halogenating agents, Cl2 or ClBr, that were genera
Autor:
Sureeporn Ruengsangtongkul, Jumreang Tummatorn, Nattawadee Chaisan, Kittipong Chainok, Somsak Ruchirawat, Charnsak Thongsornkleeb
Publikováno v:
The Journal of Organic Chemistry. 86:4671-4698
The combination of catalytic aqueous hydrochloric acid (HCl) and N-bromosuccinimide (NBS) generated electrophilic bromine monochloride (BrCl), which readily induced spiroannulation of 2-alkynolyl anilides (n = 1-3) to form gem-dibromospirocyclic benz
Autor:
Somsak Ruchirawat, Sureeporn Ruengsangtongkul, Jumreang Tummatorn, Kanyapat Lumyong, Charnsak Thongsornkleeb, Kunlayanee Punjajom, Phongprapan Nimnual, Warabhorn Rodphon, Nattawadee Chaisan
Publikováno v:
Organic Letters. 21:4694-4697
1,1-Disubstituted vinyl triflates are synthesized by direct hydrotriflation of terminal alkynes employing a combination of TfOH and TMSN3 in DCM at room temperature. Interestingly, under these cond...
Autor:
Somsak Ruchirawat, Sureeporn Ruengsangtongkul, Nattawadee Chaisan, Jumreang Tummatorn, Charnsak Thongsornkleeb
Publikováno v:
Organic Letters. 21:2514-2517
Stoichiometric ceric ammonium nitrate (CAN) and a catalytic amount of Pd(PPh3)2Cl2 (5 mol %) can rapidly produce multisubstituted 2-ketofuran-4-carboxylate esters from 2-propargylic 1,3-ketoesters via oxidative O-cyclization reaction. Pd(PPh3)2Cl2 wa
Autor:
Nattawadee, Chaisan, Sureeporn, Ruengsangtongkul, Jumreang, Tummatorn, Somsak, Ruchirawat, Kittipong, Chainok, Charnsak, Thongsornkleeb
Publikováno v:
The Journal of organic chemistry. 86(6)
The combination of catalytic aqueous hydrochloric acid (HCl) and
Autor:
Nattawadee Chaisan, Jumreang Tummatorn, Sureeporn Ruengsangtongkul, Wilailak Kaewsri, Krissada Norseeda, Charnsak Thongsornkleeb, Somsak Ruchirawat
Publikováno v:
Asian Journal of Organic Chemistry. 7:203-211
A method for the TfOH-promoted (Tf=trifluoromethanesulfonyl) cyclization of alkyne-tethered 1,3-ketoesters to afford 2-cyclohexenone-2-carboxylate derivatives has been developed. The procedure requires no transition-metal reagent or catalyst and is p
Autor:
Jumreang, Tummatorn, Kunlayanee, Punjajom, Warabhorn, Rodphon, Sureeporn, Ruengsangtongkul, Nattawadee, Chaisan, Kanyapat, Lumyong, Charnsak, Thongsornkleeb, Phongprapan, Nimnual, Somsak, Ruchirawat
Publikováno v:
Organic letters. 21(12)
1,1-Disubstituted vinyl triflates are synthesized by direct hydrotriflation of terminal alkynes employing a combination of TfOH and TMSN
Autor:
Sureeporn, Ruengsangtongkul, Nattawadee, Chaisan, Charnsak, Thongsornkleeb, Jumreang, Tummatorn, Somsak, Ruchirawat
Publikováno v:
Organic letters. 21(8)
Stoichiometric ceric ammonium nitrate (CAN) and a catalytic amount of Pd(PPh