Month: November 2020

497-25-6, Chemistry is the science of change. But why do chemical reactions take place? Why do chemicals react with each other? The answer is in thermodynamics and kinetics.In a document type is Article, the author is Ghisu, Lorenza and a compound is mentioned, 497-25-6, Oxazolidin-2-one, introducing its new discovery.

Synthesis of beta-sulfinyl cyclobutane carboxylic amides: Via a formal alpha to beta sulphoxide migration process

An original tandem reaction consisting of a thermal elimination-addition process was developed. Highly substituted beta-sulfinyl cyclobutane carboxylic acid derivatives were obtained from isomeric alpha-sulfinyl derivatives in a single operation in good to high yields and with high trans diastereoselectivity.

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Oxazolidine – Wikipedia,
Oxazolidine | C3H554NO – PubChem

 

In an article, published in an article,authors is Berredjem, Malika, once mentioned the application of 102029-44-7, Name is (R)-4-Benzyl-2-oxazolidinone,molecular formula is C10H11NO2, is a conventional compound. this article was the specific content is as follows. 102029-44-7

N-chlorosulfonyloxazolidin-2-ones: Synthesis, structure, and reactivity toward aminoesters

Synthesis, structure, and reactivity of chiral N-chlorosulfonyloxazolidin-2-ones are described. Their synthesis were easily carried out starting from the corresponding chiral oxazolidin-2-ones and sulfuryl chloride to afford the title compounds 1 in high yields.

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Reference£º
Oxazolidine – Wikipedia,
Oxazolidine | C3H1731NO – PubChem

 

184346-45-0, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.184346-45-0, Name is (S)-4-Isopropyl-5,5-diphenyloxazolidin-2-one, molecular formula is C18H19NO2. In a Article, authors is Schindler, Corinna S.£¬once mentioned of 184346-45-0

Facile formation of N-acyl-oxazolidinone derivatives using acid fluorides

A mild method is presented for the formation of N-acylated oxazolidinones that employs acid fluorides and mild bases, such as iPr 2NEt and NEt3. Optimized reaction conditions for two types of substrates have been developed utilizing either the oxazolidinone itself or the corresponding in situ generated O-silyloxazolidinones resulting in the formation of the desired N-acylated products in high yields of up to 98%.

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Oxazolidine – Wikipedia,
Oxazolidine | C3H2649NO – PubChem

 

Catalysts are substances that increase the reaction rate of a chemical reaction without being consumed in the process. 102029-44-7, Name is (R)-4-Benzyl-2-oxazolidinone, molecular formula is C10H11NO2, 102029-44-7, In a Article, authors is Ogawa, Yasuyuki£¬once mentioned of 102029-44-7

Highly stereoselective samarium(II) iodide-mediated aldol reactions of acylaziridines with aldehydes

The samarium(II) iodide-mediated stereoselective aldol reactions of acylaziridines with aldehydes are described. beta-Amino-beta?-hydroxy ketones were synthesized in high yields by the aldol reaction of aldehydes with samarium enolates generated by aziridine-fragmentation of aziridinyl ketones with two moles of samarium(II) iodide. By the choice of an appropriate nitrogen protecting group, depending on the substituent at C-3 position of aziridinyl ketone, anti,anti-beta-amino-beta?-hydroxy ketones were diastereoselectively obtained among the four possible diastereomers. Further, enantiomerically pure anti,anti-beta-amino-beta?-hydroxy ketones were successfully obtained by this aldol reaction when chiral aziridinyl ketones were used. In addition, delta-amino-?-hydroxy-beta,gamma-unsaturated esters were also synthesized in high yields by the aldol reaction of aldehydes with samarium enolates generated by aziridine-fragmentation and olefin-migration of gamma,delta-aziridinyl-alpha,beta-unsaturated esters using two moles of samarium(II) iodide. This aldol reaction proceeded with complete alpha-regioselectivity and formed (E)-olefin selectively. By introducing chiral oxazolidin-2-one auxiliary to gamma,delta-aziridinyl-alpha,beta- unsaturated carbonyl system, this reaction was extended successfully to the asymmetric reaction and enantiomerically pure syn-delta-amino-beta?- hydroxy-beta,gamma-unsaturated esters were obtained in high yields.

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Oxazolidine – Wikipedia,
Oxazolidine | C3H1959NO – PubChem

 

Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments. 95715-86-9. Introducing a new discovery about 95715-86-9, Name is Methyl (R)-N-Boc-2,2-dimethyloxazolidine-4-carboxylate

Stereoselective synthesis of unnatural (2S, 3S)-6-hydroxy-4-sphingenine-containing sphingolipids

6-Hydroxy-(4E)-sphingenine-containing sphingolipids are found in mammalian and bacterial membranes and have multiple intra- and intercellular functions. Most sphingolipids contain a (2S,3R)-2-amino-1,3-diol core structure, but only limited examples of unnatural (2S,3S)-2-amino-1,3-diol derivates have so far been reported. Using an underexplored hydrozirconation-transmetalation reaction and an unusual three-step-one-pot deprotection sequence, we were able to synthesize several unnatural (2S,3S)-6-hydroxy-(4E)-sphingenine-containing sphingolipids in only three (protected) or four (deprotected) consecutive steps, respectively, including a fluoresence-labeled derivative suitable for future biological studies.

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Oxazolidine – Wikipedia,
Oxazolidine | C3H2530NO – PubChem

 

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.497-25-6, Name is Oxazolidin-2-one, molecular formula is C3H5NO2, 497-25-6. In a Article, authors is Tamura, Kenji£¬once mentioned of 497-25-6

The effect of fluoromethyl groups on the diastereoselectivity in the electrophilic alkylation

The effect of fluoromethyl groups on the diastereoselectivity in the electrophilic alkylation is described. In particular, the electrophilic alkylation of enolates with a trifluoromethyl group was proceeded with highly diastereofacial selectivity based on the steric and/or electrostatic effect of substituent with strong electron withdrawing.

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Oxazolidine – Wikipedia,
Oxazolidine | C3H1044NO – PubChem

 

497-25-6, Chemistry is traditionally divided into organic and inorganic chemistry. The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent£¬Which mentioned a new discovery about 497-25-6

BIARYL-SUBSTITUTED TETRAHYDRO-PYRAZOLO-PYRIDINE MODULATORS OF CATHEPSIN S

Biaryl-substituted tetrahydro-pyrazolo-pyridine compounds are described, which are useful as cathepsin S modulators. Such compounds may be used in pharmaceutical compositions and methods for the treatment of disease states, disorders, and conditions mediated by cathepsin S activity, such as psoriasis, pain, multiple sclerosis, atherosclerosis, and rheumatoid arthritis.

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Oxazolidine – Wikipedia,
Oxazolidine | C3H73NO – PubChem

 

Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, get their minds active, and encourage them to do something that doesn¡¯t involve a screen. 16251-45-9, C10H11NO2. A document type is Article, introducing its new discovery., 16251-45-9

Chemoselective N-acylation of indoles and oxazolidinones with carbonylazoles

Unique reactivity: In the presence of more reactive amine and alcohol functional groups and of carboxylic acids, the chemoselective N-acylation of indoles (see scheme) and oxazolidinones is achieved by taking advantage of the unique reactivity of carbonylazole acylating agents with catalytic amounts of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU). Copyright

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Oxazolidine – Wikipedia,
Oxazolidine | C3H2164NO – PubChem

 

497-25-6, Name is Oxazolidin-2-one, belongs to oxazolidine compound, is a common compound. 497-25-6In an article, authors is Adam, Waldemar, once mentioned the new application about 497-25-6.

Control of the mode selectivity (ene reaction versus [2 + 2] cycloaddition) in the photooxygenation of ene carbamates: Directing effect of an alkenylic nitrogen functionality

The geometry of the double bond in oxazolidinone-substituted ene carbamates controls the mode selectivity (ene reaction versus [2+2] cycloaddition) of singlet oxygen through stereoelectronic effects, whereas the chiral auxiliary provides high diastereoselectivity through steric shielding. Copyright

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Oxazolidine – Wikipedia,
Oxazolidine | C3H269NO – PubChem

 

102029-44-7, Catalysts function by providing an alternate reaction mechanism that has a lower activation energy than would be found in the absence of the catalyst. In a patent, 102029-44-7, molecular formula is C10H11NO2, introducing its new discovery.

INHIBITORS OF HUMAN IMMUNODEFICIENCY VIRUS REPLICATION

Compounds of formula (I): wherein c, X, Y, R2, R4 and R5 are defined herein, are useful as inhibitors of HIV replication.

Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions.102029-44-7, you can also check out more blogs about102029-44-7

Reference£º
Oxazolidine – Wikipedia,
Oxazolidine | C3H1688NO – PubChem