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Charati Faramarz Rostami Zinatossadat Hossaini Fatemeh Moghaddasi‐Kouchaksaraei Rahimeh Hajinasiri 《中国化学》2011,29(5):951-954
An efficient synthesis of functionalized 1,3‐dienes via one‐pot reactions between dialkyl acetylenedicarboxylates?, 1,3‐dicarbonyl compounds and secondary amines in ?water as the solvent is described. The mild reaction condition high yields and the ?new products are advantages of our method. 相似文献
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Noruzian Fatemeh Olyaei Abolfazl Hajinasiri Rahimeh 《Research on Chemical Intermediates》2019,45(9):4383-4394
Research on Chemical Intermediates - A catalyst-free, simple and green protocol has been accomplished for the synthesis of novel 1H-furo[2,3-c]pyrazole-4-amines in a one-pot four-component domino... 相似文献
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Rahimeh Hajinasiri Zinatossadat Hossaini Faramarz Rostami‐Charati 《Heteroatom Chemistry》2011,22(5):625-629
Ionic liquids such as 1,3‐dialkylimidazolium bromides make excellent solvents for synthesis of α‐aminophosphonates from aldehydes, amines, and phosphites. The ionic liquids are successfully regenerated and reused. © 2011 Wiley Periodicals, Inc. Heteroatom Chem 22:625–629, 2011; View this article online at wileyonlinelibrary.com . DOI 10.1002/hc.20724 相似文献
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Issa Yavari S. Zahra Sayyed-Alangi Rahimeh Hajinasiri Hadi Sajjadi-Ghotbabadi 《Monatshefte für Chemie / Chemical Monthly》2009,28(8):209-211
Abstract
A simple one-pot synthesis of functionalized ethyl 1,3-thiazole-5-carboxylates from the reaction of 2-chloro-1,3-dicarbonyl compounds with thioureas or thioamides in the presence of 1-butyl-3-methylimidazolium trifluoromethanesulfonate is described. 相似文献16.
Issa Yavari Nasir Iravani S. Zahra Sayyed-Alangi Rahimeh Hajinasiri 《Monatshefte für Chemie / Chemical Monthly》2009,35(1):1199-1204
Abstract
An efficient synthesis of alkyl acylcarbamodithioates by reaction of acid chlorides with ammonium thiocyanate in the presence of thiols is described. The unusually large values of 5 J FH = 12–15 Hz, observed for alkyl (2-fluorobenzoyl)carbamodithioates provide information about Ar–C–N–H torsion in these compounds. 相似文献17.
In this study, 1-(1-alkylsulfonic)-3-methylimidazolium chloride as a new, green, and reusable Brønsted acid catalyst was prepared. In this protocol, we used for the regioselective ring-opening reactions of various epoxiodes with sodium azide to afford the corresponding β-azido alcohols in excellent yields and short reaction time under mild and neutral reaction conditions. This method offers several advantages including excellent regioselectivity, clean reactions, simple work-up procedure, a recyclable catalyst, and use of an eco-friendly catalyst. 相似文献
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Issa Yavari Rahimeh Hajinasiri S. Zahra Sayyed-Alangi 《Monatshefte für Chemie / Chemical Monthly》2009,20(6):205-207
Abstract
1-Ethyl-3-methylimidazolium bromide was used as a green recyclable alternative to volatile organic solvents for KOH catalyzed three-component synthesis of diethyl alkylsulfanylmethylmalonates from aldehydes, diethyl malonate, and alkylthiols. 相似文献19.
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I. Yavari R. Hajinasiri S. Z. Sayyed-Alangi N. Iravani 《Journal of the Iranian Chemical Society》2009,6(4):705-709
An efficient synthesis of dialkyl 2-(diphenoxyphosphoryl)-3-(alkylthio)succinates, as a mixture of two diastereomers, in 78–90% yields, is described via reaction between alkylthiols, dialkyl acetylenedicarboxylates, and triphenyl phosphite. The structures of products were deduced from their high-field 1H, 13C, and 31P NMR spectra, and IR spectral data. Since these hosphonate esters possess two stereogenic centers, two diastereomers with gauche HCCH arrangements are possible. Observation of 3 J HH = 3.5-4.6 Hz for the vicinal methine protons confirmed the dominance of the gauche arrangement. A mechanism is proposed for the formation of products. 相似文献