Category: 35621-01-3

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: Piperidin-4-amine dihydrochloride(SMILESS: NC1CCNCC1.[H]Cl.[H]Cl,cas:35621-01-3) is researched.Computed Properties of C8H12ClNO2. The article 《Efficient and Scalable Method for the Selective Alkylation and Acylation of Secondary Amines in the Presence of Primary Amines》 in relation to this compound, is published in Organic Process Research & Development. Let’s take a look at the latest research on this compound (cas:35621-01-3).

Selective substitution of secondary amines in the presence of primary amines is performed by using the reaction solvent, Me isobutylketone (MIBK), as a temporary protecting group for the primary amine. After acylation or alkylation of the secondary amine, the resulting imine intermediate is smoothly hydrolyzed, leading to the free primary amine in high yield and purity. This procedure represents a cheap and scalable alternative to multistep methods requiring several protections and deprotections.

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Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Solvent-free N-Boc deprotection by ex situ generation of hydrogen chloride gas, published in 2021, which mentions a compound: 35621-01-3, mainly applied to amine hydrochloride salt preparation green chem; tertbutyl carbamate deprotection, Reference of Piperidin-4-amine dihydrochloride.

An efficient, scalable and sustainable method for the quant. deprotection of the tert-Bu carbamate (N-Boc) protecting group is described, using down to near-stoichiometric amounts of hydrogen chloride gas in solvent-free conditions. The ex situ generation of hydrogen chloride gas from sodium chloride and sulfuric acid in a two-chamber reactor, introducing a straightforward method for controlled and stoichiometric release of HCl gas were demonstrated. The solvent-free conditions allow deprotection of a wide variety of N-Boc derivatives e.g., N-Boc benzylamine to obtain the hydrochloride salts in e.g., benzylamine hydrochloride quant. yields. The procedure obviates the need for any work-up or purification steps providing an uncomplicated green alternative to standard methods. Due to the solvent-free, anhydrous conditions, this method shows high tolerance towards acid sensitive functional groups and furnishes expanded functional group orthogonality.

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Reference:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: Piperidin-4-amine dihydrochloride, is researched, Molecular C5H14Cl2N2, CAS is 35621-01-3, about Efficient and Scalable Method for the Selective Alkylation and Acylation of Secondary Amines in the Presence of Primary Amines, the main research direction is selective secondary amine alkylation acylation protecting group manipulation.HPLC of Formula: 35621-01-3.

Selective substitution of secondary amines in the presence of primary amines is performed by using the reaction solvent, Me isobutylketone (MIBK), as a temporary protecting group for the primary amine. After acylation or alkylation of the secondary amine, the resulting imine intermediate is smoothly hydrolyzed, leading to the free primary amine in high yield and purity. This procedure represents a cheap and scalable alternative to multistep methods requiring several protections and deprotections.

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Reference:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Comparative Study, Article, Biochemical Pharmacology called Putrescine or spermidine binding site of aminopropyltransferases and competitive inhibitors, Author is Shirahata, Akira; Morohohi, Toru; Fukai, Masayo; Akatsu, Sakae; Samejima, Keijiro, which mentions a compound: 35621-01-3, SMILESS is NC1CCNCC1.[H]Cl.[H]Cl, Molecular C5H14Cl2N2, Related Products of 35621-01-3.

A model of the active site of aminopropyltransferases was proposed based on the study of a number of monoamino and diamino compounds as potential inhibitors and substrates, resp., of spermidine synthase purified from pig liver. The active site seems to have a relatively large hydrophobic cavity adjacent to a neg. charged site, to which a protonated amino group of putrescine binds, with another amino group of putrescine being situated in the hydrophobic cavity as a free form to be aminopropylated by decarboxylated S-adenosylmethionine. On the basis of the above-mentioned model, another modified one was proposed for spermine synthase, and several compounds designed according to the modified model were found to potently inhibit spermine synthase, purified from rat brain, in competition with spermidine. The newly developed inhibitors were about two orders of magnitude more potent in vitro than a known inhibitor of spermine synthase, dimethyl(5′-adenosyl)sulfonium perchlorate.

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Reference:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Comparative Study, Article, Biochemical Pharmacology called Putrescine or spermidine binding site of aminopropyltransferases and competitive inhibitors, Author is Shirahata, Akira; Morohohi, Toru; Fukai, Masayo; Akatsu, Sakae; Samejima, Keijiro, which mentions a compound: 35621-01-3, SMILESS is NC1CCNCC1.[H]Cl.[H]Cl, Molecular C5H14Cl2N2, Related Products of 35621-01-3.

A model of the active site of aminopropyltransferases was proposed based on the study of a number of monoamino and diamino compounds as potential inhibitors and substrates, resp., of spermidine synthase purified from pig liver. The active site seems to have a relatively large hydrophobic cavity adjacent to a neg. charged site, to which a protonated amino group of putrescine binds, with another amino group of putrescine being situated in the hydrophobic cavity as a free form to be aminopropylated by decarboxylated S-adenosylmethionine. On the basis of the above-mentioned model, another modified one was proposed for spermine synthase, and several compounds designed according to the modified model were found to potently inhibit spermine synthase, purified from rat brain, in competition with spermidine. The newly developed inhibitors were about two orders of magnitude more potent in vitro than a known inhibitor of spermine synthase, dimethyl(5′-adenosyl)sulfonium perchlorate.

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Reference:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: Piperidin-4-amine dihydrochloride( cas:35621-01-3 ) is researched.Name: Piperidin-4-amine dihydrochloride.Shirahata, Akira; Morohohi, Toru; Fukai, Masayo; Akatsu, Sakae; Samejima, Keijiro published the article 《Putrescine or spermidine binding site of aminopropyltransferases and competitive inhibitors》 about this compound( cas:35621-01-3 ) in Biochemical Pharmacology. Keywords: synthase spermine spermidine inhibitor active site; aminopropyltransferase putrescine spermidine site inhibitor. Let’s learn more about this compound (cas:35621-01-3).

A model of the active site of aminopropyltransferases was proposed based on the study of a number of monoamino and diamino compounds as potential inhibitors and substrates, resp., of spermidine synthase purified from pig liver. The active site seems to have a relatively large hydrophobic cavity adjacent to a neg. charged site, to which a protonated amino group of putrescine binds, with another amino group of putrescine being situated in the hydrophobic cavity as a free form to be aminopropylated by decarboxylated S-adenosylmethionine. On the basis of the above-mentioned model, another modified one was proposed for spermine synthase, and several compounds designed according to the modified model were found to potently inhibit spermine synthase, purified from rat brain, in competition with spermidine. The newly developed inhibitors were about two orders of magnitude more potent in vitro than a known inhibitor of spermine synthase, dimethyl(5′-adenosyl)sulfonium perchlorate.

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Reference:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Synthesis and pharmacological evaluation of piperidine derivatives with various heterocyclic rings at the 4-position, published in 1985-03-31, which mentions a compound: 35621-01-3, Name is Piperidin-4-amine dihydrochloride, Molecular C5H14Cl2N2, Related Products of 35621-01-3.

A series of piperidine derivatives with various heterocyclic rings at the 4-position, e.g. I, II, was prepared and tested for antihypertensive activity and other biol. activities. The antihypertensive effects of the present compounds in the spontaneous hypertensive rat were less potent than those of previously reported compounds However, some exhibited antiulcer and/or antiinflammatory activity. Structure-activity relationships are discussed.

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Reference:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: Piperidin-4-amine dihydrochloride, is researched, Molecular C5H14Cl2N2, CAS is 35621-01-3, about Solvent-free N-Boc deprotection by ex situ generation of hydrogen chloride gas.Name: Piperidin-4-amine dihydrochloride.

An efficient, scalable and sustainable method for the quant. deprotection of the tert-Bu carbamate (N-Boc) protecting group is described, using down to near-stoichiometric amounts of hydrogen chloride gas in solvent-free conditions. The ex situ generation of hydrogen chloride gas from sodium chloride and sulfuric acid in a two-chamber reactor, introducing a straightforward method for controlled and stoichiometric release of HCl gas were demonstrated. The solvent-free conditions allow deprotection of a wide variety of N-Boc derivatives e.g., N-Boc benzylamine to obtain the hydrochloride salts in e.g., benzylamine hydrochloride quant. yields. The procedure obviates the need for any work-up or purification steps providing an uncomplicated green alternative to standard methods. Due to the solvent-free, anhydrous conditions, this method shows high tolerance towards acid sensitive functional groups and furnishes expanded functional group orthogonality.

As far as I know, this compound(35621-01-3)Name: Piperidin-4-amine dihydrochloride can be applied in many ways, which is helpful for the development of experiments. Therefore many people are doing relevant researches.

Reference:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Electric Literature of C5H14Cl2N2. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: Piperidin-4-amine dihydrochloride, is researched, Molecular C5H14Cl2N2, CAS is 35621-01-3, about Synthesis and pharmacological evaluation of piperidine derivatives with various heterocyclic rings at the 4-position.

A series of piperidine derivatives with various heterocyclic rings at the 4-position, e.g. I, II, was prepared and tested for antihypertensive activity and other biol. activities. The antihypertensive effects of the present compounds in the spontaneous hypertensive rat were less potent than those of previously reported compounds However, some exhibited antiulcer and/or antiinflammatory activity. Structure-activity relationships are discussed.

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Reference:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

HPLC of Formula: 35621-01-3. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: Piperidin-4-amine dihydrochloride, is researched, Molecular C5H14Cl2N2, CAS is 35621-01-3, about Palladium-mediated N-arylation of heterocyclic diamines: insights into the origin of an unusual chemoselectivity. Author is Cabello-Sanchez, Noemi; Jean, Ludovic; Maddaluno, Jacques; Lasne, Marie-Claire; Rouden, Jacques.

The chemoselectivity of the palladium-mediated reaction of bromobenzene with various heterocyclic diamines was studied. Whatever the ligand used, 3-aminopyrrolidine underwent arylation of the secondary amine function (>82%), whereas the more flexible 3-aminoazepine was arylated on its primary function (>70%). The ratio “”arylation of primary amine vs. arylation of secondary amine”” of 3-aminopiperidine with bromobenzene varied from 90:10 (BINAP, electron-enriched and hindered biphenyls L2 or L3) to 32:68 with the Josiphos-type ligand L10. The same trend was observed when 4-aminopiperidine was used (82:18 with L2 and 17:83 with L10). This selectivity can be tuned by the choice of aryl halide partners having different steric and electronic properties. A cooperative effect of both nitrogens of diamines during the reaction was deduced from competitive experiments Finally, 13C and 31P NMR experiments, carried out with 3-aminopyrrolidine at room temperature, support a fast coordination of the primary amine to the metal. Indeed, a palladium complex resulting from the unusual displacement of one phosphine group of the intermediate ArPdX(BINAP) by the primary amino group was characterized.

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Reference:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia