- New stereoselective synthesis of (Z)-a-iodovinylsilanes via one-pot iododesilylation/isomerization of 1,1-bis(silyl)alk-1-enes.
[作者:Pawluc, Piotr;Madalska, Martyna;Hreczycho, Grzegorz;Marciniec, Bogdan;,期刊:Synthesis, 页码:3687-3691 , 文章类型: 研究论文,,卷期:2008年-22]
- Synthetically useful (Z)-2-aryl-1-iodo-1-silylethenes were prepd. in good to excellent yields via one-pot monoiododesilylation/isomerization of readily accessible 2-aryl-1,1-bis(silyl)ethenes using N-iodosuccinimide or b...
- One-pot synthesis of internal conjugated (Z)-enynyltrimethylsilanes possessing aryl, cycloalkenyl, (E)- or (Z)-alk-1-enyl moieties on the sp carbon atom via two types of cross-coupling reaction.
[作者:Hoshi, Masayuki;Iizawa, Tomohiko;Okimoto, Mitsuhiro;Shirakawa, Kazuya;,期刊:Synthesis, 页码:3591-3600 , 文章类型: 研究论文,,卷期:2008年-22]
- Described herein is an operationally simple and mild method for the stereospecific synthesis of internal conjugated (Z)-enynyltrimethylsilanes whose conjugation is extended away from the distal alkynyl carbon atom. This...
- Efficient and versatile synthesis of 2,3-dialkylimidazo[4,5-b]quinoline-9-ols by microwave-assisted one-pot Beckmann rearrangement.
[作者:Hwang, Bo Hyun;Choi, Eun Bok;Lee, Hyeon Kyu;Yang, Hee Cheol;Chung, Bong Young;Pak, Chwang Siek;,期刊:Synthesis, 页码:3569-3578 , 文章类型: 研究论文,,卷期:2008年-22]
- A direct microwave-assisted one-pot Beckmann rearrangement of 3-acyl-2-(alkylamino)quinolin-4-(1H)-ones in ethanol-pyridine (2:1) provided 2,3-dialkylimidazo[4,5-b]quinolin-9-ols, e.g., I, as major products along with 2-...
- Synthesis of structurally well-defined triglyceryl di-, tri-, and tetra-fatty acid esters as new oil gelators.
[作者:Hamada, Masahiro;Terayama, Megumi;Kaneko, Kei-ichi;Ooya, Tohru;Kishimoto, Takao;Nakajima, Noriyuki;,期刊:Synthesis, 页码:3663-3669 , 文章类型: 研究论文,,卷期:2008年-22]
- We are interested in developing chem. modified linear and cyclic polyglycerols and their esters that have a single polymn. degree and fine structure. Triglyceryl di-, tri-, and tetra-fatty acid esters were synthesized f...
- Synthesis of ethyl pyrimidine-4-carboxylates from unsymmetrical enamino diketones and their application in the first synthesis of pyrimido[4,5-d]pyridazin-8(7H)-ones.
[作者:Rosa, Fernanda A.;Machado, Pablo;Fiss, Gabriela F.;Vargas, Pamela S.;Fernandes, Tanize S.;Bonacorso, Helio G.;Zanatta, Nilo;Martins, Marcos A. P.;,期刊:Synthesis, 页码:3639-3648 , 文章类型: 研究论文,,卷期:2008年-22]
- The reaction of unsym. enamino diketones with benzamidine hydrochloride or 1H-pyrazole-1-carboxamidine monohydrochloride, afforded a series of Et 2,5-disubstituted pyrimidine-4-carboxylates in a chemoselective and highly...
- Improved robust method for preparing optically active 3-alkyl-3-phenyl-1,4-dioxane-2,5-diones; a promising new chiral template.
[作者:Nagase, Ryohei;Iida, Yuuki;Sugi, Mikiko;Misaki, Tomonori;Tanabe, Yoo;,期刊:Synthesis, 页码:3670-3674 , 文章类型: 研究论文,,卷期:2008年-22]
- A robust method for prepg. (3S)-3-alkyl-3-phenyl-1,4-dioxane-2,5-diones, e.g., I, was developed using an improved cyclocondensation reaction between (S)-a-alkylmandelic acids and 2-bromocarbonyl halides. Subtle differen...
- Microwave-assisted three-component reaction for the synthesis of pyrido[2',1':2,3]imidazo[4,5-c]isoquinolin-5(6H)-ones.
[作者:Mert-Balci, Fadime;Conrad, Juergen;Meindl, Kathrin;Schulz, Thomas;Stalke, Dietmar;Beifuss, Uwe;,期刊:Synthesis, 页码:3649-3656 , 文章类型: 研究论文,,卷期:2008年-22]
- Pyrido[2',1':2,3]imidazo[4,5-c]isoquinolin-5(6H)-ones, e.g., I, can be obtained by a microwave-assisted three-component reaction between 2-aminopyridines, isocyanides, and 2-carboxybenzaldehydes under acidic conditions. ...
- Efficient one-pot synthesis of 1,3-disubstituted pyridin-2(1H)-ones from a-hydroxyketene S,S-acetals under Vilsmeier conditions.
[作者:Liu, Jun;Liang, Deqiang;Wang, Mang;Liu, Qun;,期刊:Synthesis, 页码:3633-3638 , 文章类型: 研究论文,,卷期:2008年-22]
- A facile and efficient one-pot synthesis of 1,3-disubstituted pyridin-2(1H)-ones, e.g., I, is developed via a novel cascade reaction of readily available a-hydroxy-a-carbamoyl ketene S,S-acetals under Vilsmeier condition...
- First synthesis of the naturally occurring diazocarbonyl compound cremeomycin.
[作者:Varley, Lisa M.;Moody, Christopher J.;,期刊:Synthesis, 页码:3601-3604 , 文章类型: 研究论文,,卷期:2008年-22]
- The first synthesis of cremeomycin (3-diazo-4-methoxy-2-oxocyclohexa-4,6-dienecarboxylic acid), a naturally occurring diazo carbonyl compd., is described. Starting from Me 2-hydroxy-4-methoxybenzoate, nitration, hydroly...
- An efficient method for the selective iodination of a,b-unsaturated ketones.
[作者:Wang, Zihua;Yin, Guodong;Qin, Jing;Gao, Meng;Cao, Liping;Wu, Anxin;,期刊:Synthesis, 页码:3675-3681 , 文章类型: 研究论文,,卷期:2008年-22]
- An efficient approach to a,b-unsatd. a'-iodo ketones directly from a,b-unsatd. ketones by selective iodination at the a'-position, without effect on the double bond and the activated benzene ring, in the presence of copp...
- o-Benzenedisulfonimide as a soft, efficient, and recyclable catalyst for the acylation of alcohols, phenols, and thiols under solvent-free conditions: advantages and limitations.
[作者:Barbero, Margherita;Cadamuro, Silvano;Dughera, Stefano;Venturello, Paolo;,期刊:Synthesis, 页码:3625-3632 , 文章类型: 研究论文,,卷期:2008年-22]
- O-Benzenedisulfonimide turns out to be a highly efficient Bronsted acid catalyst for the acylation of a no. of alcs., phenols, and thiols under a metal- and solvent-free procedure; reaction conditions are mild and yields...
- Development of asymmetric nickel-catalyzed arylation of aromatic aldehydes with arylboron reagents.
[作者:Yamamoto, Kana;Tsurumi, Kaori;Sakurai, Fumie;Kondo, Kazuhiro;Aoyama, Toyohiko;,期刊:Synthesis, 页码:3585-3590 , 文章类型: 研究论文,,卷期:2008年-22]
- The development of the nickel-catalyzed 1,2-addn. of triarylboroxins to arom. aldehydes in the presence of a phosphine ligand is described. This development allowed the asym. nickel-catalyzed 1,2-addn. of arylboron reage...
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