One-pot and template-free fabrication of dendritic and octahedral single-crystal magnetites

CrystEngComm ◽  
2011 ◽  
Vol 13 (5) ◽  
pp. 1525-1530 ◽  
Author(s):  
Xuegang Yu ◽  
Yan Shan ◽  
Bin Du ◽  
Kezheng Chen
Keyword(s):  
One Pot ◽  
2008 ◽  
Vol 8 (3) ◽  
pp. 957-963 ◽  
Author(s):  
Lu-Ping Zhu ◽  
Hong-Mei Xiao ◽  
Wei-Dong Zhang ◽  
Guo Yang ◽  
Shao-Yun Fu

2013 ◽  
Vol 9 ◽  
pp. 265-269 ◽  
Author(s):  
Ping-An Wang ◽  
Sheng-Yong Zhang ◽  
Henri B Kagan

A series of chiral 10-heteroazatriquinanes were synthesized from enantiopure asymmetric cis-2,5-disubstituted pyrrolidines through a one-pot tandem cyclization procedure. The structures and configurations of these new chiral 10-heteroazatriquinanes are confirmed by X-ray single-crystal diffraction analysis.


2009 ◽  
Vol 113 (50) ◽  
pp. 21042-21047 ◽  
Author(s):  
Shanhu Liu ◽  
Ruimin Xing ◽  
Feng Lu ◽  
Rohit Kumar Rana ◽  
Jun-Jie Zhu

2015 ◽  
Vol 68 (2) ◽  
pp. 184 ◽  
Author(s):  
Benjamin Prek ◽  
Uroš Grošelj ◽  
Marta Kasunič ◽  
Silvo Zupančič ◽  
Jurij Svete ◽  
...  

Two metal-free syntheses of 2,4,6-trisubstituted pyridines 10a–m and 16a–j are described. N,N,6-Trimethyl-4-(substituted)pyridin-2-amines 10 were prepared from aryl or heteroaryl methyl ketones which were transformed with N,N-dimethylacetamide dimethyl acetal (DMADMA) into enaminones 4a–m, followed by treatment with ammonium acetate to give (Z)-3-amino-1-(substituted)but-2-en-1-ones 5a–m. These were treated with DMADMA under microwave irradiation in a closed vessel at 130°C, to give via intermediates 7–9 the final products 10a–m. N2,N2,N4,N4-Tetramethyl-6-(substituted) pyridine-2,4-diamines 16a–j were prepared in a one-pot synthesis from the corresponding carboxamides 11a–j by treatment with an excess of DMADMA in a closed vessel under microwave irradiation to give via intermediates 12a–j to 15a–j the final products 16a–j. X-Ray single crystal diffractometry studies of the enaminones 5c, 5g, 5i, 5j, and 5m and 2,4,6-trisubstituted pyridines 16a, 16b, 16g, 16i, and 16j were consistent with the expected structures.


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