排序方式: 共有84条查询结果,搜索用时 15 毫秒
31.
Issa Yavari Faezeh Shirgahi-Talari Zinatossadat Hossaini Maryam Sabbaghan Samereh Seyfi 《Molecular diversity》2010,14(4):763-766
An efficient synthesis of 1-aryl-5-aryl(alkyl)-1,2-dihydro-3H-1,2,4-triazole-3-thiones via reaction between ammonium thiocyanate, acid chlorides, and arylhydrazines is described. 相似文献
32.
Khalilzadeh Mohammad A. Hossaini Zinatossadat Kharian Samaneh 《Molecular diversity》2010,14(3):605-609
Molecular Diversity - An efficient synthesis of 2H-pyridinyl-2-butenedioate derivatives via reaction of dimethyl methoxymalonate and dialkyl acetylenedicarboxylate in the presence of N-nucleophiles... 相似文献
33.
Issa Yavari Zinatossadat Hossaini Samereh Seyfi Faezeh Shirgahi-Talari 《Monatshefte für Chemie / Chemical Monthly》2008,15(1):1257-1259
The reaction of acetylenic esters with ethyl bromopyruvate in the presence of tetramethylthiourea led to highly functionalized
thiophenes in excellent yields. 相似文献
34.
Issa Yavari Zinatossadat Hossaini Samereh Seyfi Faezeh Shirgahi‐Talari 《Helvetica chimica acta》2008,91(6):1177-1180
An efficient synthesis of ethyl 2‐(dimethylamino)‐1,3‐thiazole‐4‐carboxylates is described via a four‐component reaction between acid chlorides, tetramethylthiourea, ethyl bromopyruvate, and ammonium thiocyanate. 相似文献
35.
Karami Hossein Hossaini Zinatossadat Sabbaghan Maryam Rostami-Charati Faramarz 《Chemistry of Heterocyclic Compounds》2018,54(11):1040-1044
Chemistry of Heterocyclic Compounds - A convenient one-pot three-component synthesis of indeno[1,2-b]pyrrol-4(1H)-ones has been developed. The reaction of ninhydrin, 1,3-dicarbonyl compounds, and... 相似文献
36.
Issa Yavari Majid Ghazanfarpour-Darjani Maryam Sabbaghan Zinatossadat Hossaini 《Tetrahedron letters》2007,48(21):3749-3751
Isoquinoline reacts smoothly with dimethyl acetylenedicarboxylate (DMAD) in the presence of amides to produce dimethyl 2-[1-[aryl(alkyl)carbonylamino]-2(1H)-isoquinolinyl]-2-butenedioates. Reaction of quinoline with DMAD in the presence of benzamide led to dimethyl 2-[1-[(phenylcarbonyl)amino]-2(1H)-quinolinyl]-2-butenedioate. 相似文献
37.
Issa Yavari Zinatossadat Hossaini Maryam Sabbaghan 《Monatshefte für Chemie / Chemical Monthly》2007,138(2):107-110
Summary. Protonation of the highly reactive 1:1 intermediates produced in the reaction between alkyl(aryl) isocyanides and dibenzoylacetylene
by isatin, leads to vinylnitrilium cations, which undergo carbon-centered Michael-type addition with the conjugate base of the NH-acid to produce highly functionalized 1-(3-furyl)-1H-indole-2,3-diones. A dynamic NMR effect is observed in the 1H NMR spectra of these compounds as a result of restricted rotation around the single bond linking the indole moiety and the
furan system. The free-energy of activation (ΔG
#) for this process is 69–71 ± 2 kJ mol−1. 相似文献
38.
Faramarz Rostami-Charati Zinatossadat Hossaini Masoumeh Moghimi Elaheh Kowsari 《中国化学快报》2012,23(9):1007-1010
An efficient synthesis of thiazines from the three component reactions between dialkyl acetylenedicarboxylates,arylisothio-cyanates and iV-nucleophiles at room temperature in water as the solvent is described. 相似文献
39.
Faramarz Rostami‐Charati Zinatossadat Hossaini Mohammad A. Khalilzadeh Mahboube Islami Moghaddam Vahid Babaei 《Journal of heterocyclic chemistry》2012,49(2):405-408
A straightforward and an efficient method for the synthesis of 2H‐pyrans via the one‐pot, reaction of alkyl bromides, carbon disulfide, secondary amines, activated acetylenes and isocyanides under solvent‐free conditions without using any catalyst at room temperature is reported. The method offers several advantages including high yields of products and an easy work‐up procedure. J. Heterocyclic Chem., (2011). 相似文献
40.