共查询到20条相似文献,搜索用时 5 毫秒
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William M. Barnett Peris J. Carr Joseph A. Counsil Harvest L. Collier 《Journal of heterocyclic chemistry》2008,45(6):1843-1845
The amide‐amine, 1,1′‐di(aminoethylaminocarbonylethyl)‐2,2′‐biimidazole (DAEPB) ( 1 ), and subsequent Schiff base imine product, 1,1′‐di(salicylaldiminoethylaminocarbonylethyl)‐2,2′‐biimidazole (DSEB) ( 2a ), have been synthesized from the ester, 1,1′‐di(ethoxycarbonylethyl)‐2,2′‐biimidazole (DEPB). Additionally, 1,1′‐di(salicylaldiminoethylaminocarbonylmethyl)‐2,2′‐biimidazole (DSMB) ( 2b ), was prepared from its corresponding amide‐amine. All compounds were characterized with FTIR, NMR and elemental analyses. The salicylaldimines, compounds ( 2a ) and ( 2b ), exhibit fluorescence at 540 and 520 nm, respectively, over a broad range of excitation wavelengths. 相似文献
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Jianhui Zhu Yongmei Zhao Dr. Yanyan Zhu Ziyi Wu Miaoxin Lin Weijiang He Dr. Yan Wang Dr. Guangju Chen Prof. Dr. Lei Dong Dr. Junfeng Zhang Prof. Dr. Yi Lu Prof. Dr. Zijian Guo Prof. Dr. 《Chemistry (Weinheim an der Bergstrasse, Germany)》2009,15(21):5245-5253
The center of it all : An antitumor‐active trinuclear platinum complex forms unprecedented interstrand cross‐linked triadducts with 18‐mer DNA duplexes (see figure; complex in yellow with the platinum centers in red) and behaves differently from its dinuclear analogue.
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Akbar Mobinikhaledi Naser Forughifar Jil A. Alipour Safari EhsaN. Amini 《Journal of heterocyclic chemistry》2007,44(3):697-699
A series of oxo‐ and thioxopyrimidines 4 ( a‐m ) were synthesized by one‐pot three components cyclocondensation reaction of β‐ketoester, aldehyde and urea/thiourea using benzyltriethylammonium chloride as a catalyst under solvent‐free conditions. The yields of products following recrystallization from ethanol were of the order of 65‐87%. IR and 1HNMR spectroscopy and elemental analysis were used for identification of these compounds. 相似文献
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Avijit Banerji Pizush Kanti Biswas Debasish Bandyopadhyay Maya Gupta Thierry Prangé Alain Neuman 《Journal of heterocyclic chemistry》2007,44(1):137-143
Investigation of cycloadditions of C‐aryl‐N‐(4‐chlorophenyl)nitrones to N‐cinnamoyl piperidines was carried out. Two diastereoisomeric and one regioisomeric cycloadducts, and in some cases ring‐opened compounds were characterized by spectroscopic and X‐ray data. Molecular modelling was carried out for conformational studies. 相似文献
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