¥ 196.00

产品编号 G113447 | CAS号 496-46-8 | 阿拉丁
货号 规格 库存 价格 数量
G113447-100g 98% 上海(8)
G113447-25g 98% 上海(>10)
G113447-5g 98% 上海(>10)


密度 1.4200
熔点 >300°C


产品介绍 溶于水,溶于温的无机酸和温的氨水。
别名 甘脲 ;咪唑并[4,5-D]咪唑-2,5(1H,3H)四氢代二酮;Acetylenediurea Tetrahydroimidazo[4,5-d]imidazole-2,5-(1H,3H)-dione
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标识符号 GHS07 GHS07
信号词 Warning
危害声明 H302
WGK德国 1
Merck Index 93
Ji-Tai JT Li, Xiao-Ru XR Liu, Ming-Xuan MX Sun
Synthesis of the glycolurils catalyzed by potassium hydroxide was carried out in 17-75% yield at 40 degrees C in EtOH under ultrasound irradiation. Compared to the method using stirring, the main adva...Read More
Yoshihiro Y Yamauchi, Dariush D Ajami, Ji-Yeon JY Lee, Julius J Rebek
We're sorry this abstract is currently not available....Read More
Konrad Tiefenbacher, Henry Dube, Dariush Ajami, Julius Rebek
The synthesis of an azo-benzene glycoluril supergelator is reported. The control over the gel/sol state can be accomplished by irradiation and heat, but also (in a unidirectional sense) by incorporati...Read More
Wheate NJ, Patel N, Sutcliffe OB
Background: Cucurbit[n]urils (CB[n]; n = 5, 6, 7, 8 or 10) are a family of macrocycles made from the acid-catalyzed condensation of glycoluril and formaldehyde. Results: The synthesis of CB[n] using m...Read More
Dariush D Ajami, Julius J Rebek
Simple alkanes feature fully extended conformations as their lowest-energy shapes but can assume coiled, compressed conformations in small spaces. A series of normal alkanes, C(16) to C(19), were enca...Read More
Marie M Hardouin-Lerouge, Piétrick P Hudhomme, Marc M Sallé
Intense current interest in supramolecular chemistry is devoted to the construction of molecular assemblies displaying controlled molecular motion associated to recognition. On this ground, molecular ...Read More
Wei-Hao WH Huang, Peter Y PY Zavalij, Lyle L Isaacs
In a process reminiscent of RNA folding, acyclic glycoluril decamer (+/-)-1 undergoes double helical assembly (red/green strands) in water triggered by the neutralization of regions of high electrosta...Read More
Megha S Deshpande, Anupa A Kumbhar, Avinash S Kumbhar, Manoj Kumbhakar, Haridas Pal, Uddhavesh B Sonawane, Rajendra R Joshi
Nine complexes of the type [Ru(N-N)(2)(BPG)]Cl(2) 1-4, [Ru(N-N)(BPG)(2)]Cl(2) 5-8, and [Ru(BPG)(3)]Cl(2) 9 where N-N is 2,2'-bipyridine (bpy), 1,10-phenanthroline (phen), dipyrido[3,2-d:2',3...Read More
Dariush D Ajami, Julius J Rebek
A cylindrical capsule containing a coiled alkane incorporates spacers. The alkane lengthens and gauche strain is relieved. The spacer can be removed to reset the system to the original state. The syst...Read More
Pedro P Hidalgo-Fernández, Eva E Ayet, Ivan I Canal, Joan-Antoni JA Farrera
Glycoluril derivatives with a carboxylic acid side chain have been synthesized and shown to bind to both avidin and streptavidin. Introduction of a valerate side chain in glycoluril led to an increase...Read More
Darren W DW Johnson, Liam C LC Palmer, Fraser F Hof, Peter M PM Iovine, Julius J Rebek
A series of substituted glycoluril molecules exhibits a substantial twist of the fused five-membered rings and assembles exclusively chiral hydrogen-bonded ribbons in the solid-state....Read More
Anxin A Wu, Arindam A Chakraborty, Dariusz D Witt, Jason J Lagona, Fehmi F Damkaci, Marie A MA Ofori, Jessica K JK Chiles, James C JC Fettinger, Lyle L Isaacs
Methylene-bridged glycoluril dimers are the fundamental building blocks of cucurbituril (CB[6]), its homologues (CB[n]), and its derivatives. This paper describes three complementary methods for the s...Read More
Satish S Bhat, Avinash S Kumbhar, Anupa A Kumbhar, Ayesha Khan
Complexes of the type [Ru(bxbg)(2) (N-N)](2+), where N-N denotes 2,2'-bipyridine (bpy) (1), 1,10-phenanthroline (phen) (2), dipyrido[3,2-d:2',3-f] quinoxaline (dpq) (3), and dipyrido[3,2-a:2...Read More
Toshiaki T Taira, Dariush D Ajami, Julius J Rebek
Encapsulation of ion pairs in small spaces that are isolated from the medium is expected to result in amplified interactions between the ions. Yet, sequestration of ion pairs in self-assembled capsule...Read More
Dariush D Ajami, Julius J Rebek
Synthetic receptors that surround their target molecules - self assembled capsules and deep cavitands - have emerged as the most realistic models of enzymes active sites. They were introduced to study...Read More
Wolfgang-Andreas C Bauer, Christian Neuber, Christopher K Ober, Hans-Werner Schmidt
Electron beam lithography is a powerful technique for the production of nanostructures but pattern quality depends on numerous interacting process variables. Orthogonal gradients of resist composition...Read More
Derick D Lucas, Lyle L Isaacs
The fragmentation reaction of bis-nor-seco-CB[10] with 3,5-dimethylphenol (3) delivers methylene bridged glycoluril pentamer 5 in 81% yield. The host-guest recognition properties of the previously kno...Read More
We're sorry this abstract is currently not available....Read More
Neng-Fang She, Meng Gao, Xiang-Gao Meng, Guang-Fu Yang, Johannes A A W Elemans, An-Xin Wu, Lyle Isaacs
A programmed assembly process produces rhombic grid networks from compounds L1-L4 in the crystal by pi-pi stacking interactions that generate a bimolecular grid synthon, which undergoes further NH...N...Read More
Neng-Fang NF She, Xiang-Gao XG Meng, Meng M Gao, An-Xin AX Wu, Lyle L Isaacs
Glycoluril derivative--whose bulky Ph-C[triple bond]C- substituents prevent formation of H-bonded tapes--undergoes solvent dependent assembly in the crystal; a tetrameric molecular bowl is formed by R...Read More
Dariush Ajami, Julius Rebek
We're sorry this abstract is currently not available....Read More
Zhi-Guo ZG Wang, Bao-Han BH Zhou, Yun-Feng YF Chen, Guo-Dong GD Yin, Yi-Tao YT Li, An-Xin AX Wu, Lyle L Isaacs
We report the X-ray crystal structure of 11 molecular clips and analyze the influence of substituents (e.g., OMe, Me, and NO2) and their location on the observed crystal packing. Molecular clips 3a an...Read More
Darren W DW Johnson, Fraser F Hof, Liam C LC Palmer, Tomás T Martín, Ulrike U Obst, Julius J Rebek
Four complementary hydrogen bonds between sulfamides and ureas link adjacent hydrogen-bonded ribbons to form sheets in the solid-state; this interaction is investigated in solution using model urea an...Read More
Arindam Chakraborty, Anxin Wu, Dariusz Witt, Jason Lagona, James C Fettinger, Lyle Isaacs
Cucurbit[6]uril (CB[6]) is a macrocyclic compound, prepared in one pot from glycoluril and formaldehyde, whose molecular recognition properties have made it the object of intense study. Studies of the...Read More