Топ-100 ★ Free online encyclopedia. Did you know? page 275

★ Free online encyclopedia. Did you know? page 275




                                               

Insertion reaction

The insertion reaction is a chemical reaction where one chemical entity is an intermediary in the existing relationship, usually the second chemical factory, for example: A + B–C → B– A –C This term refers only to the result of the reaction and g ...

                                               

Isolobal principle

The isolobal principle is a strategy used in ORGANOMETALLIC chemistry to relate the structure of organic and inorganic molecular fragments in order to predict bonding properties of ORGANOMETALLIC compounds. Roald Hoffmann described molecular frag ...

                                               

Metalation

The introduction is a chemical reaction that involves the bonding of a metal atom, which is usually organic molecules to form new compounds. This reaction is usually made by replacing halogen in an organic molecule with a metal atom with the form ...

                                               

Metallodendrimer

The metal can be positioned in a repeating unit, the core or the extremities at the end of the group. Elements common palladium and platinum. These metals can form octahedral six-coordinate MIV linking blocks of organic dihalides and the correspo ...

                                               

Salen ligand

Salen refers to tetradentate 2 -symmetric ligands, synthesized from salicylaldehyde and Ethylenediamine. It can also refer to the class of compounds which are structurally related with classic Salen ligand, primarily bis-Schiff bases. Salen ligan ...

                                               

Tuck-in complex

In ORGANOMETALLIC chemistry, tuck-in complex, generally relates to derivatives of CP* ligands, in which the methyl group is deproteinizirovanny and the methylene is attached to the metal. With 5-h 2 -m angle is acute. The term "seasoned" was coin ...

                                               

AD-mix

In organic chemistry, ad-Mix is a commercially available mixture of reagents, which acts as an asymmetric catalyst for various chemical reactions, including the asymmetric dihydroxylation alkenes Sharpless. Two letters ad stand for asymmetric dih ...

                                               

Benzyl carbamate

Benzyl carbamate is an organic compound with the formula c 6 h 5 CH 2 OCNH 2. The connection can be regarded as a complex ether carbamino acid) and benzyl alcohol, although it is obtained from benzyl chloroformate with ammonia. It is white solid ...

                                               

Benzyl chloroformate

Benzyl chloroformate is the benzyl ester of chloroformic acid. Also known as benzyl chlorocarbonate it is an oily colourless liquid, while impure samples appear yellow. He is also known for its pungent odor. When in contact with water it decomposes.

                                               

Borane dimethylsulfide

Borane dimethyl disulfide complex is the borane reagent that is used for hydroborations and reductions. The advantages of BMS over other Boranes reagents, such as Boran-tetrahydrofuran, its increased stability and higher solubility. BMS is commer ...

                                               

Cyclohexenone

Cyclohexenone is an organic compound which is a versatile intermediate used in the synthesis of various chemical products such as pharmaceuticals and perfumes. This is a clear, colorless liquid in its pure form, but a commercially available produ ...

                                               

Di-tert-butyl dicarbonate

Di - tert-butyl dicarbonate is a reagent widely used in organic synthesis. With this compound can be formally considered as an acid anhydride prepared from a tert-butoxycarbonyl group, it is often called "BOC anhydride." This pyrocarbonate reacts ...

                                               

Diethyl azodicarboxylate

Diethyl azodicarboxylate, conventionally abbreviated as dead and sometimes as DEADCAT, is an organic compound with the structural formula CH 3 CH 2 OH 2 CN=NCO 2 CH 2 CH 3. Its molecular structure consists of a Central Azo functional group, RN=NR ...

                                               

Diisopinocampheylborane

Diisopinocampheylborane is an organoborane, which is useful for asymmetric synthesis. This colourless solid is the precursor of a number of relevant reagents. The mixture was reported in 1961 by Zweifel and brown in a pioneering demonstration of ...

                                               

Dimethyl malonate

Dimethyl malonate is a diester derivative of malonic acid. It is a common reagent for organic synthesis used, for example, as a precursor for barbituric acid. It is also used in the synthesis of malonic ether. It can be synthesized from dimethoxy ...

                                               

Disiamylborane

Disiamylborane Boran, SIA 2 BH) is an organoborane used in organic synthesis. It is used for hydroboration–oxidation reactions of terminal alkynes, giving the aldehyde via anti-Markovnikov hydration is accompanied by tautomerization. Disiamylbora ...

                                               

Ethyl chloroformate

Ethyl chloroformate is the ethyl ester of chloroformic acid. This reagent, used in organic synthesis to introduce an ethyl group, a carbamate protection and the formation of carboxylic anhydrides.

                                               

Ethyl diazoacetate

Ethyl diazoacetate OS 2 H 5) - is diazocompounds and reagents in organic chemistry. It was discovered by Theodor Curtius in 1883. Compounds can be prepared by the reaction of the ethyl ester of glycine with sodium nitrite and sodium acetate in wa ...

                                               

2-Furoic acid

2-Furoic acid is a heterocyclic carboxylic acids, consisting of five-membered aromatic ring and carboxyl group. Its name comes from the Latin word furfur, meaning bran. Salts and esters of furoic acids is known as furoates. 2-Furoic acid is an or ...

                                               

Grignard reagents

                                               

Hagemanns ester

Hagemanns ether or ethyl-2-methyl-4-oxo-2-cyclohexenecarboxylate, is an organic compound that was first prepared and described in 1893 by German chemist Karl Hagemann. Compound used in organic chemistry as a reagent in the synthesis of many impor ...

                                               

Hexyllithium

N-Hexyllithium, with 6 h 13 Li, sometimes abbreviated HxLi or the NHL, it organolithium compound used in organic synthesis as a strong base or as a lithiation reagent. It is usually found as colourless or pale yellow solution in hexanes. Such dec ...

                                               

N-Iodosuccinimide

N-Iodosuccinimide is a reagent used in organic chemistry for the iodination of alkanes and as a mild oxidant. NIS is the iodine analog of N-chlorosuccinimide NCS and N-bromosuccinimide NBS, which are used for such applications.

                                               

Ishikawa reagent

The Ishikawas reagent is a fluorinating reagent used in organic chemistry. It is used to convert alcohols into alkyl fluorides and carboxylic acids to acyl fluorides. Aldehydes and ketones do not react with it. The reagent consists of a mixture o ...

                                               

Isobutyryl chloride

Isobutyryl chloride is the simplest branched-chain acyl chloride. It is at room temperature, as a corrosive, colorless liquid.

                                               

Methoxymethylenetriphenylphosphine

Methoxymethylenetriphenylphosphine is a Wittig reagent is used as reagent in homological aldehydes and ketones to extended aldehydes, an organic reaction first published in 1958. This reagent is quite unstable even moderate temperatures and water ...

                                               

Methyl chloroformate

Methyl chloroformate is a methyl ester of chloroformic acid. It is a colourless oily liquid, although the samples in age, there are yellow. He is also known for its pungent odor.

                                               

Methyl phenyldiazoacetate

Phenyldiazoacetate methyl is an organic compound with the formula c 6 h 5 MTR 2 Me. This diazo derivative of methyl phenylacetate. Colloguially called "phenyldiazoacetate," he created and used after isolation in the form of a yellow oil. Methyl P ...

                                               

N-Methylmorpholine

N-Methylmorpholine is an organic compound with the formula o 2 NCH 3. It is a colorless liquid. Is a cyclic tertiary amine. It is used as the base catalyst for the production of polyurethanes. It is formed by the reaction of methylamine and dieth ...

                                               

Propionyl chloride

Propionyl chloride is an organic compound with the formula CH 3 CH 2 CCL. This acyl chloride derivative of propionic acid. It is a typical reaction of acyl chlorides. It is a colorless, pungent, volatile liquid. It is used as a reagent for organi ...

                                               

Sodium methylsulfinylmethylide

Methylsulfinylmethylide sodium is the sodium salt of the conjugate base of dimethyl sulfoxide. This unusual salt has some uses in organic chemistry as a base and nucleophile. Since first publication in 1965, Corey et al. a number of additional ap ...

                                               

Triethyl orthoacetate

Triethyl orthoacetate is the ethyl orthoester of acetic acid. It is also known as 1.1.1-triethoxyethane, and is an oily liquid with a color that ranges from yellow to colorless. Triethyl orthoacetate is used in organic synthesis for the introduct ...

                                               

Trimethyl orthoformate

Trimethyl orthoformate is the simplest orthoester. This reagent, used in organic synthesis for the introduction of protective groups for aldehydes. The reaction product of aldehyde with trimethyl orthoformate is acetal. In General, these acetals ...

                                               

Trinder reagent

                                               

Tris(benzyltriazolylmethyl)amine

Trismethyl)amine is a tertiary Amine containing 1.2.3-triazole fragment. When used as a ligand, forms a complex with copper, it allows for quantitative, regioselective official Huisgen 1.3-dipolar cycloadditions between alkynes and azides in vari ...

                                               

Alkylating agents

                                               

Dehydrating agents

                                               

Alkyl

In organic chemistry, the alkyl substituent is an alkane missing one hydrogen. The term alkyl is intentionally unspecific to include many possible substitutions. In acyclic alkyl has the General formula with N T 2 N 1. In a cycloalkyl is derived ...

                                               

Aryl

In the context of organic molecules, Aryl is any functional groups or substituents, obtained from the aromatic ring, typically aromatic hydrocarbons such as phenyl and naphthyl. "Aryl" is used for the sake of abbreviation or generalization, and " ...

                                               

Alkanediyl groups

                                               

Alkyl groups

                                               

Arenediyl groups

                                               

Ferrocene-containing dendrimers

Ferrocene-containing dendrimers are dendrimers containing ferrocene substituents. Some ferrocene-containing dendrimers characterization of ferrocene nuclei, while others are not. All rooms are equipped with peripheral ferrocene groups.

                                               

Poly(amidoamine)

Poly, or PAMAM, class of dendrimer, which is made of re-branched subunits of amide and amine functionality. PAMAM dendrimers, sometimes called the trade of star formation, have been extensively studied since their synthesis in 1985 and are the mo ...

                                               

SI unit templates

                                               

Unit comparison table templates

                                               

Mycobacterium arosiense

Mycobacterium arosiense is a newly described species of mycobacteria. It is a scotochromogen, which got its name from Arosia, the Latin name of the city Aarhus, where the strain was first isolated. It can be regarded as Mycobacterium intracellula ...

                                               

Mycobacterium novocastrense

                                               

Mycobacterium parascrofulaceum

                                               

Mycobacterium parmense

Mycobacterium parmense species of mycobacteria. It is closely related to Mycobacterium heidelbergense. It is also closely related to Mycobacterium lentiflavum and Mycobacterium simiae.

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