- Synthesis and antimicrobial evaluation of some bis(thioxopyridine), bis(pyrazolo[3,4-b]pyridine), bis(thieno[2,3-b]pyridine), bis(1,3,4-thiadiazole) and bis-thiophene derivatives.
[作者：Kheder, Nabila A.;Mabkhot, Yahia N.;Farag, Ahmad M.;,期刊：Heterocycles, 页码：2937-2948 , 文章类型： 研究论文，,卷期：2008年75-12]
- Condensation of (NCCH2CONHCH2)2 with arom. aldehydes gave the corresponding N,N'-(ethane-1,2-diyl)bis(2-cyano-3-phenylacrylamides). The latter products react with NCCH2CSNH2 to afford 1,2-bis(4-aryl-3,5-dicyano-6-mercapt...
- Grayanane diterpenoids from the barks of craibiodendron henryi.
[作者：Huang, Xiang-zhong;Huang, Rong;Du, Gang;Yin, Yan;Dai, Yun;Yu, Ming-qian;,期刊：Heterocycles, 页码：3043-3049 , 文章类型： 研究论文，,卷期：2008年75-12]
- Three new grayanane diterpenoids, 14b-O-(2S,3R-nilyl)rhodomollein XVIII (I), 14b-O-(2S,3R-nilyl)rhodomollein I (II) and 14b-O-(2S,3R-nilyl)rhodojaponin III (III) have been isolated from the barks of Craibiodendron henryi...
- Efficient formation of a triazole ring via novel ring-opening reaction of (Z)-2-methyl-4-arylmethylene-5(4H)-oxazolones with hydrazides.
[作者：Maekawa, Kei;Tomoda, Atsushi;Igarashi, Tetsutaro;Sakurai, Tadamitsu;,期刊：Heterocycles, 页码：2959-2971 , 文章类型： 研究论文，,卷期：2008年75-12]
- The ring-opening mode of the title oxazolones with hydrazide nucleophiles was investigated from both synthetic and mechanistic points of view. The novel ring opening proceeded to give (Z)-2-(3-methyl-5-substituted 1,2,4...
- Rhodium-catalyzed arylation of 2-azabicyclo[2.2.1]hept-5-en-3-one with arylboronic acids under microwave irradiation.
[作者：Abe, Takumi;Takeda, Hiroyuki;Takahashi, Yumi;Miwa, Yoshihisa;Yamada, Koji;Ishikura, Minoru;,期刊：Heterocycles, 页码：2931-2936 , 文章类型： 研究论文，,卷期：2008年75-12]
- Rhodium-catalyzed arylation of 2-azabicyclo[2.2.1]hept-5-en-3-one was successfully performed by applying microwave irradn.
- Efficient synthesis of 1,8-dioxo-octahydroxanthenes using HClO4/SiO2 as catalyst.
[作者：Mahdavinia, Gholam Hossein;Bigdeli, Mohammad A.;Hayeniaz, Yaser Saeidi;Nemati, Firouzeh;,期刊：Heterocycles, 页码：3077-3083 , 文章类型： 研究论文，,卷期：2008年75-12]
- Silica-supported perchloric acid (HClO4/SiO2) is a heterogeneous recyclable catalyst for rapid and efficient synthesis of 1,8-dioxo-octahydroxanthenes with good to excellent yields in solvent free conditions. The cataly...
- Coumarins and flavones from Casimiroa pringlei.
[作者：Maldonado, Emma;Marquez, Imelda;Chiang, Fernando;Ortega, Alfredo;,期刊：Heterocycles, 页码：3057-3064 , 文章类型： 研究论文，,卷期：2008年75-12]
- A chem. study of the leaves of Casimiroa pringlei led to the isolation of six coumarins, six flavones and the sesquiterpene, cryptomeridiol. Four of these compds. are new natural products which, on the basis of spectrosc...
- Singaporentine a: a new indole alkaloid from Kopsia singapurensis RIDL.
[作者：Awang, Khalijah;Ahmad, Kartini;Thomas, Noel F.;Hirasawa, Yusuke;Takeya, Koichi;Mukhtar, Mat Ropi;Mohamad, Khalit;Morita, Hiroshi;,期刊：Heterocycles, 页码：3051-3056 , 文章类型： 研究论文，,卷期：2008年75-12]
- Study on chem. constituents from the leaves of Kopsia singapurensis (Apocynaceae) yielded a new indole alkaloid, singaporentine A (1) together with two known alkaloids, kopsifoline A (2) and kopsininic acid (3). The str...
- Furanoeremophilanes and other constituents of Pittocaulon bombycophole.
[作者：Maldonado R., Jhon Ironzi;Arciniegas, Amira;Perez-Castorena, Ana-L.;Villasenor, Jose Luis;Romo de Vivar, Alfonso;,期刊：Heterocycles, 页码：3035-3042 , 文章类型： 研究论文，,卷期：2008年75-12]
- Three new eremophilanes (1-3) and a new oplopane (4) were isolated from Pittocaulon bombycophole. Addnl., three known sesquiterpenes (5-7) and the alkaloid 7-angeloylplatynecine (8) were isolated. The structures of the...
- Facile synthesis of model indazolo[2,1-c][1,3,4]benzotriazepine-5,13-diones.
[作者：Zahra, Jalal A.;El-Abadelah, Mustafa M.;Thaher, Bassam A.;Abu Laufer, Stefan;Boese, Roland;,期刊：Heterocycles, 页码：2989-3004 , 文章类型： 研究论文，,卷期：2008年75-12]
- In basic media, 2-aminobenzoates react with hydrazonoyl chlorides 2-HO2CC6H4NHN:CClCOR (R = Me, OMe; precursors of the reactive nitrile imine 1,3-dipolar species) to afford good yields of the corresponding 2-[N'-(1-carbo...
- A mild and efficient synthesis of new 3-phenylthienotriazolopyrimidine derivatives using iodobenzene diacetate.
[作者：Joe, Byeoung Sun;Son, Hoon Young;Song, Yang-Heon;,期刊：Heterocycles, 页码：3091-3097 , 文章类型： 研究论文，,卷期：2008年75-12]
- New 3-phenylthieno[3,2-e]- and -[2,3-e][1,2,4]triazolo[4,3-c]pyrimidines were easily synthesized at room temp. in high yield by oxidative cyclization of appropriate thienopyrimidinyl hydrazones using iodobenzene diacetat...
- Synthesis and antimicrobial evaluation of novel pyrazolo[1,5-a]pyrimidine, pyrimido[1,2-a]benzimidazole, triazolo[4,3-a]pyrimidine and pyrido[1,2-a]benzimidazole derivatives incorporated phenylsulfonyl moiety.
[作者：Shaaban, Mohamed R.;,期刊：Heterocycles, 页码：3005-3014 , 文章类型： 研究论文，,卷期：2008年75-12]
- PhSO2CH2CN reacts with DMF-DMA to afford 3-(dimethylamino)-2-(phenylsulfonyl)acrylonitrile (I). Subsequent reaction with 5-aminopyrazoles, 5-amino-1,2,4-triazole, and 2-aminobenzimidazole afforded new pyrazolo[1,5-a]pyr...
- Novel and efficient access to thieno[3,4-c]cinnolines.
[作者：Gehanne, Karine;Lancelot, Jean-Charles;Lemaitre, Stephane;El-Kashef, Hussein;Rault, Sylvain;,期刊：Heterocycles, 页码：3015-3024 , 文章类型： 研究论文，,卷期：2008年75-12]
- New substituted thieno[3,4-c]cinnoline-3-carboxylates were synthesized from the corresponding 3-aminothiophene-2-carboxylates by a new route using a modified Sandmeyer reaction. Under proper conditions, Sandmeyer reacti...
- An alternative preparation of pyrazolo-pyridine derivatives in ionic liquid and comparison study on the reactivity of thioamide and amide group.
[作者：Zhang, Xin-Ying;Li, Xiao-Yan;Fan, Xue-Sen;Wang, Xia;Qu, Gui-Rong;Wang, Jian-Ji;,期刊：Heterocycles, 页码：3065-3075 , 文章类型： 研究论文，,卷期：2008年75-12]
- An efficient prepn. of 4-aryl-6-amino-5-cyano-3-methyl-1-phenylpyrazolo[3,4-b]pyridines and 4-aryl-5-cyano-3-methyl-1-phenylpyrazolo[3,4-b]pyridin-6-ones from the condensation of arylidenecyanothioacetamide or -acetamide...
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