共查询到20条相似文献,搜索用时 31 毫秒
1.
Abstract
A convenient method for direct conversion of aldehydes into nitriles has been developed by using tetrabutylammonium tribromide in aqueous ammonia. 相似文献2.
Background
Triptolide is a diterpene triepoxide from the Chinese medicinal plant Tripterygium wilfordii Hook F., with known anti-inflammatory, immunosuppressive and anti-cancer properties. 相似文献3.
Narkis Khusainova Eugeny Berdnikov Rafael Cherkasov Mikhail Khusainov 《Monatshefte für Chemie / Chemical Monthly》2011,36(4):753-754
Abstract
Reactions of 2-mercaptobenzimidazole with 3-methylbuta-1,2-dienylphosphonates involve the mercapto group of the heterocyclic compound and the 1,2-double bond of allenylphosphonate. 相似文献4.
5.
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6.
Background
Cells expose phosphatidylserine during apoptosis. The voltage across the plasma membrane also decreases or disappears during apoptosis, but the physiological significance of this is unknown. 相似文献7.
Maja Ludvigsen Morten Østergaard Henrik Vorum Christian Jacobsen Bent Honoré 《BMC biochemistry》2009,10(1):34-11
Background
We have previously identified endonuclein as a cell cycle regulated WD-repeat protein that is up-regulated in adenocarcinoma of the pancreas. Now, we aim to investigate its biomedical functions. 相似文献8.
Zhou Yu Sean E Reichheld Leslie Cuthbertson Justin R Nodwell Alan R Davidson 《BMC biochemistry》2010,11(1):34
Background
Increasing our understanding of antibiotic resistance mechanisms is critical. To enable progress in this area, methods to rapidly identify and characterize antibiotic resistance conferring enzymes are required. 相似文献9.
Brindaban Roy Rajendra Narayan De Somjit Hazra 《Monatshefte für Chemie / Chemical Monthly》2012,41(8):119-125
Abstract
A concise synthesis of pyrrolo[1,2-f]phenanthridine-annulated polycyclic heterocycles has been achieved in good yields by palladium-catalyzed intramolecular direct arylation reaction. 相似文献10.
Ahmad Shaabani Afshin Sarvary Sajjad Mousavi-Faraz Seik Weng Ng 《Monatshefte für Chemie / Chemical Monthly》2012,9(5):1061-1065
Abstract
A facile stereoselective synthesis of 1,2-dihydroquinolin-2-ylphosphonate and 1,2-dihydroisoquinolin-1-ylphosphonate derivatives by the three-component reactions of quinoline or isoquinoline, dialkyl acetylenedicarboxylates, and hydrogen phosphonates is described. 相似文献11.
Background
Pigment epithelium-derived factor (PEDF) has binding affinity for cell-surface receptors in retinoblastoma cells and for glycosaminoglycans. We investigated the effects of glycosaminoglycans on PEDF-receptor interactions. 相似文献12.
Kiumars Bahrami Mohammad M. Khodaei Akbar Nejati 《Monatshefte für Chemie / Chemical Monthly》2011,15(1):159-162
Abstract
ZnO is an efficient, readily available, and reusable catalyst for the one-pot synthesis of 1,2,4,5-tetrasubstituted and 2,4,5-trisubstituted imidazoles. This procedure is very simple and affords excellent yields. 相似文献13.
Volodymyr Semeniuchenko Yana Garazd Myroslav Garazd Tetyana Shokol Ulrich Groth Volodymyr Khilya 《Monatshefte für Chemie / Chemical Monthly》2009,25(3):1503-1512
Abstract
A highly efficient procedure for glucosylation of flavonoids by acetobromoglucose is described. Glucosylation is carried out in a two-phase system CHCl3/H2O over 96 h using tetrabutylammonium bromide as phase-transfer catalyst. A purification procedure can be performed without column chromatography, and the yields of the glucosylated flavonoids are mostly quantitative. Acetylated glucosides were deprotected with sodium methanolate to afford the desired glucosides of flavonoids. 相似文献14.
Vivek D. Bobade Pravin C. Mhaske Kamlesh S. Vadgaonkar Shivaji H. Shelke 《Monatshefte für Chemie / Chemical Monthly》2012,21(4):847-851
Abstract
Efficient utilization of a Mannich-type reaction and the ring-closing metathesis (RCM) approach that leads to a convenient synthesis of 3-(aminomethyl)-5-methylhexanoic acid (pregabalin) is described. 相似文献15.
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.
Abstract
An enhanced rate of intramolecular nitrile oxide cycloaddition and hence a rapid synthesis of isoxazoles and isoxazolines is described. Formation of nitrile oxides from oximes using only 1 or 2 Eq (equivalents) of aqueous sodium hypochlorite solution is also described. 相似文献17.
Background
A third DNA strand can bind into the major groove of a homopurine duplex DNA to form a DNA triple helix. Sequence specific triplex formation can be applied for gene targeting, gene silencing and mutagenesis. 相似文献18.
Afshin Rajabi Khorrami Parvin Kiani Ayoob Bazgir 《Monatshefte für Chemie / Chemical Monthly》2011,9(6):287-295
Abstract
l-Proline was found to be a versatile organocatalyst for the synthesis of new spirooxindole derivatives in good yields under mild reaction conditions using 1-propanol as a solvent. 相似文献19.
Seyed Javad Ahmadi Sodeh Sadjadi Morteza Hosseinpour Mojtaba Abdollahi 《Monatshefte für Chemie / Chemical Monthly》2011,44(24):801-806
Abstract
Nano-structured CuO granules catalyze the C–N cross-coupling of amines with iodobenzene in excellent yields. The reaction is simple, efficient, and operates in air under ligand-free conditions. 相似文献20.
Sarfraz Ahmad Robert Weis Johanna Faist Volker Wolkinger Robert Saf Ferdinand Belaj Reto Brun Marcel Kaiser Werner Seebacher 《Monatshefte für Chemie / Chemical Monthly》2012,25(2):145-152