CAS: 120-89-8; Imidazolidine-2,4,5-Trione

相似化合物

30345-85-8 3720-97-6 29410-13-7

上下游产品

carbamoylimino-acetic acid bis(phenyl) carbonate Oxalamide 2,4-imidazolidinedione6-methylquinoxaline-2,3-dione oxamidobiuret imidazolidone 2,4-imidazolidinedione

2-硫代乙内酰脲置于二氧化氮体系中,化学反应 6.0H,反应生成仲班酸
参考文献:Gas/solid Reactions With Nitrogen Dioxide
标题:Gas/solid Reactions With Nitrogen Dioxide
摘要:Numerous Gas/solid Reactions Of Nitrogen Dioxide With Organic Substrates Are Investigated Preparatively And Mechanistically. Gaseous No2 Reacts With Crystalline Stable Free Radicals (Nitroxyls 1,Verdazyl 6) By Electron Transfer. The Nitrite Ions Formed Are Irreversibly Oxidized By No2 Via Oxygen Atom Transfer. Solid Cation Nitrates Are Formed Quantitatively. Thione Bonds Of Thiohydantoins 8 Are Transformed To Carbonyl Bonds With Formation Of Sulfur And No Presumably Via Nitrites As Intermediates. Hydantoin 13 Oxygenates At Its Free 5-Methylene Group Via C-H Abstraction And Nitrite Or It Undergoes N-1 Nitration Via N-H Abstraction Depending On The Conditions. Both Reactions Proceed Quantitatively. 1,3-Oxazolidin-2-One (15) Gives N-Nitration And N-Nitrosation With The No Produced. Nonenolized Crystalline Barbituric Acids 17 Are Quantitatively Nitrated (C-N Bond Formation With Radicals) At Their Methylene Groups. 4-Hydroxybenzaldehyde (19) And Vanilline (22) Give Quantitative Aromatic Nitration (C-N Bond Formation With Arenes) Without Melting. All Possible Regioisomers Are Formed. Solid 9-Methylanthracene (26) Gives A Quantitative Yield Of Its 10-Nitro Derivative 27. Crystalline Anthracene (28) And Gaseous No2 Yield 3 Primary Products 29 (Cis; Trans) And The New Dimeric Product 30 As Well As The Stable Secondary Products 31 And 32. The Gas/solid Tetranitration Of Tetraphenylethylene (33) Is Severely Hindered By The Water Of Reaction. However,A 95% Yield Of Pure Tetrakis(P-Nitrophenyl)Ethylene Is Obtained If The Drying Agent Mgso4 . 2H(2)O Is Admired And The Product 34 Extracted. The Gas/solid Procedures Avoid Solvents And Fuming Nitric Acid. They Give Pure Products Without Necessity For Recrystallization In Most Cases And They Avoid Wastes. Atomic Force Microscopy (Afm) Measurements On Prominent Faces Of Single Crystals Of 1A,11A,28,And 33 Reveal Phase Rebuildings With Well-Directed Long-Range Molecular Transports. Nanoliquids Were Only Present On (110) Of 28. The Characteristic Afm Features Are Correlated With Known X-Ray Crystal Structure Data And Compared With Previous Results. The Shape Of The Features Depends On The Molecular Packing In The Crystal Bulk And On The Molecular Shapes. Molecular Interpretations Of The Afm Features Are Given.
Doi:10.1021/jo00122A031

专利信息

专利号:US-11920174-B2
优先权日:2016-03-03
标 题 :RNA analysis by total hydrolysis and quantification of released nucleosides
发明人：EBER FABIAN JOHANNES; WOCHNER ANIELA; ROOS TILMANN
权利人:CureVac SE
摘要:The present invention relates to analysis of an RNA molecule. It further relates to the use of this method for the quality control of an RNA molecule produced by in vitro transcription or for the quality control of an RNA molecule produced by chemical synthesis.

专利号:US-5606071-A
优先权日:1993-10-06
标题 :Process for preparing 5-arylhydantoins using 5-hydantoin, a halogenating agent and p-phenol
发明人：YASUDA HIROSHI
权利人:SHOWA DENKO KK
摘要:The present invention provides a novel process for the preparation of 5-arylhydantoins as an important intermediate of (D)-arylglycines (e.g., (D)-p-hydroxyphenyl-glycine) useful for the synthesis of semisynthetic penicillines and cephalosporins, the process comprising (i) reacting a 5-unsubstituted hydantoin compound with a halogenating agent and (ii) reacting the resulting product with a p-unsubstituted phenol compound, the hydroxy group of which may be protected, to substitute the 5-position of the hydantoin compound with the phenol compound at the para position.

专利号:WO-2021137835-A1
优先权日:2019-12-31
标题:Penicillin derivatives and method for their synthesis
发明人：SARIPINAR EMIN; Ä°LHAN Ä°LHAN ÖZER; ÇADIR MEHMET
权利人:T C ERCIYES UENIVERSITESI
摘要:The present invention relates to new penicillin derivatives having the potential of being effectively used against microbes and bacteria which have attained resistance in order to perform many useful pharmaceutical activities such as antiprotozoal, such as antibacterial, antimalarial, antidiharreatic, anticoagulant, antiviral, anticancer and antihypertensive, anticancerogenic, antifungal, tripanocidal, antisecretory, antidiarrheatic, antileucomic, cardiotonic, anticancer, and methods of preparation thereof.

专利号:TW-583276-B
优先权日:2002-07-23
标 题 :Novel synthesis of water-soluble phthalocyanines by microwave irradiation

专利号:CN-107188771-A
优先权日:2017-05-25
标题:A kind of chiral synthesis method of γ-nitrophenol compound

专利号:CN-103626816-A
优先权日:2013-12-13
标题 :Synthesis method and antibacterial application of acetylglucosamine imidazole-2,4,5-trione