Category: 707-61-9

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, Heterocyclic Communications called Preparation and characterization of phospholanes and phospha sugars as novel anti-cancer agents, Author is Ito, Satoru; Yamashita, Mitsuji; Niimi, Taishi; Fujie, Michio; Reddy, Valluru Krishna; Totsuka, Hirono; Haritha, Buchammagari; Maddali, Kasthuraiah; Nakamura, Satoki; Asai, Kazuhide; Suyama, Takuya; Yamashita, Junko; Iguchi, Yukiko; Yu, Gang; Oshikawa, Tatsuo, which mentions a compound: 707-61-9, SMILESS is CC1=CP(CC1)(C2=CC=CC=C2)=O, Molecular C11H13OP, Recommanded Product: 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide.

Diastereo isomeric erythro and threo forms of 2,3-epoxy-1-phenylphospholane 1-oxides were synthesized from threo and erythro forms of 2-bromo-3-hydroxy-1-phenylphospholane 1-oxides being prepared from 1-phenyl-2-phospholene 1-oxide. Alternatively, the epoxides were also prepared by the epoxidation of the 2-phospholene with peroxides such as sodium peroxide and hydrogen peroxide. The reactivity and regioselectivity for the reaction of erythro and threo forms of the 2,3-epoxides with nucleophiles were investigated by using amines, and the reaction afforded 2-amino-3-hydroxy-1-phenylphospholane 1-oxides, which correspond to phospha sugar N-glycosides. 2,3-Dibromo-3-methyl-1-phenylphospholane 1-oxides were first prepared from 3-methyl-1-phenyl-2-phospholene 1-oxide. The prepared phospholanes or phospha sugars were biol. qualified by MTT (3-(4,5-Dimethyl-2-thiazolyl)-2,5-diphenyltetrazolium bromide) in vitro method to find that some of these phosphorus heterocycles or phospha sugars have quite efficient anti-cancer activity for leukemia cells in manners of (i) wide spectra, (ii) high activities, and (iii) high specificities.

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HPLC of Formula: 707-61-9. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide, is researched, Molecular C11H13OP, CAS is 707-61-9, about Synthesis of phenylphosphine oxide catalyst. Author is Fu, Ze.

The tech. process and conditions of preparing the high efficiency phenylphosphine oxide catalyst were studied by using phosphorus trichloride, benzene and isoprene as raw materials. The excess phosphorus trichloride reacting with benzene could increase the yield of the intermediate product dichlorophenylphosphine.

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Application In Synthesis of 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide, is researched, Molecular C11H13OP, CAS is 707-61-9, about A novel conversion of erythro phospholane epoxides to one-carbon atom homologated allylic alcohols. Author is Reddy, Valluru Krishna; Haritha, Buchammagari; Oshikawa, Tatsuo; Yamashita, Mitsuji.

A novel synthetic approach is described to incorporate one more C atom at C-2 position of phospholane oxides as homologated allylic alc. I by treatment of erythro-2,3-epoxy-3-methylphospholane 1-oxides, e.g., II (R = Ph, C6H4NO2-m, C6H4OMe-p, OMe, OEt, OPr-i), with excess of dimethylsulfonium methylide.

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Related Products of 707-61-9. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide, is researched, Molecular C11H13OP, CAS is 707-61-9, about Novel synthesis and structure of phosphanyl sugar derivatives. Author is Yamashita, Mitsuji; Yabui, Akihiro; Suzuki, Kazumitsu; Kato, Yukihiro; Uchimura, Miyuki; Iida, Akihito; Mizuno, Hiroyuki; Ikai, Koichi; Oshikawa, Tatsuo; Parkanayi, Laszlo; Clardy, Jon.

Some phosphanyl sugars, e.g. I, which are analogs of sugars having a phosphorus atom in place of the ring oxygen, were synthesized from 2- and 3-phospholenes as starting materials. Catalytic cis-dihydroxylation of 2-phospholene or 3-phospholene 1-oxide derivatives with osmium(VIII) oxide in the presence of a Co-oxidant afforded 3-deoxy- or 1-deoxy-tetrofuranose-type phosphanyl sugar derivatives, resp. Cis-Dihydroxylation of 4-acyloxy-2-phospholene 1-oxide derivatives gave tetrofuranose type phosphanyl sugar derivatives Some of these derivatives of phosphanyl sugars were subjected to structural analyses using 1H NMR and X-ray crystallog.

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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: 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide, is researched, Molecular C11H13OP, CAS is 707-61-9, about Research and development of phospha sugar anti-cancer agents with anti-leukemic activity.Quality Control of 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide.

We have synthesized three deoxybromophospha sugar analogs, 4-bromo-3-methyl-1-phenyl-2-phospholene 1-oxide (MBMPP (2)), 2,3-dibromo-3-methyl-1-phenylphospholane 1-oxide (DBMPP (3)), the 2,3,4-tribromo-3-methyl-1-phenylphospholane 1-oxide (TBMPP (4)), by the reaction of 3-methyl-1-phenyl-2-phospholene 1-oxide (1b) and/or 2 with bromine, and investigated their potentials as anti-leukemic agents against human leukemia cell lines of K562 and U937. Cells’ growth inhibition was determined by using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) in vitro assay. All agents showed inhibitory effects on leukemia cell proliferation, indicating that inhibition appeared to be dependent on number of bromine substituent in the heterocyclic structure. Further, the phospha sugar derivatives did not show any inhibitory effects on normal cell proliferation. These agents may facilitate the development of new strategies in mol. targeting anti-leukemic therapy.

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The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide(SMILESS: CC1=CP(CC1)(C2=CC=CC=C2)=O,cas:707-61-9) is researched.Product Details of 38006-08-5. The article 《A chiral shift reagent for measurement of optical purities of chiral phosphine oxides》 in relation to this compound, is published in Huaxue Shiji. Let’s take a look at the latest research on this compound (cas:707-61-9).

(R)-(-)-N-(3,5-Dinitrobenzyl)-α-phenylethylamine (I) is an excellent chiral shift reagent for measurement of optical purities of chiral phosphine oxides. The method of preparation and application of reagent I are discussed in detail. 1-Phenyl-3-methyl-2-phospholene(II) is oxidized to 1-phenyl-3-methyl-2-phospholene 1-oxide (III) which is then reacted with tert-BuOOH with complete retention of optical activity. When phosphine oxide is mixed with reagent(I), optical purity of phosphine oxide can be measured according to 1H NMR spectra; the optical purity of II can be determined

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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.Fu, Ze researched the compound: 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide( cas:707-61-9 ).Category: dioxole.They published the article 《Synthesis of phenylphosphine oxide catalyst》 about this compound( cas:707-61-9 ) in Hecheng Xiangjiao Gongye. Keywords: phenylphosphine oxide catalyst; phosphorus trichloride reaction benzene isoprene. We’ll tell you more about this compound (cas:707-61-9).

The tech. process and conditions of preparing the high efficiency phenylphosphine oxide catalyst were studied by using phosphorus trichloride, benzene and isoprene as raw materials. The excess phosphorus trichloride reacting with benzene could increase the yield of the intermediate product dichlorophenylphosphine.

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Safety of 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide, is researched, Molecular C11H13OP, CAS is 707-61-9, about NMR and uv spectral studies of some 1-aryl-substituted 3-methyl-2-phospholene oxides. Author is Kerek, F.; Ostrogovich, G..

The NMR and uv spectra of 7 1-aryl-3-methyl-2-phospholene oxides (I, R = H, Me, NMe2, etc.) are discussed. The value of 25 cps for the coupling constants of the P atom with vinylic protons indicates a Δ2,3 position of the phospholene ring double bond. The linear correlation of the bathochromic shift values with substituent constants (σ°) shows a low conjugative interaction between the benzene ring and the phosphoryl group.

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Related Products of 707-61-9. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide, is researched, Molecular C11H13OP, CAS is 707-61-9, about Phospho sugars; novel preparation and their glycosyl compounds. Author is Ikai, Koichi; Iida, Akihito; Yamashita, Mitsuji.

Treatment of 1-phenyl-2-, and -3-phospholene 1-oxides with NBS affords 4-bromo-1-phenyl-2-phospholene 1-oxide (I). Substitution of the bromide with acetate, followed by stereoselective oxidation with osmium tetroxide and peracetylation with acetic anhydride/pyridine affords phospho sugar derivatives II of tetrafuranose. Furthermore, glycosyl compounds III (R = iodo, OAc, SCN, N3) of phospho sugars were prepared from 3-methyl-1-phenyl-2-phospholene 1-oxide by bromination and nucleophilic substitution reactions.

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HPLC of Formula: 707-61-9. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide, is researched, Molecular C11H13OP, CAS is 707-61-9, about Catalytic aza-Wittig Cyclizations for Heteroaromatic Synthesis. Author is Marsden, Stephen P.; McGonagle, Alison E.; McKeever-Abbas, Ben.

The first examples of heterocycle synthesis by iminophosphorane formation/intramol. aza-Wittig cyclizations that are catalytic in the organophosphorus component are reported. The reaction has been demonstrated in the synthesis of both azine (phenanthridine) and azole (benzoxazole) heterocycles. E.g., in presence of phospholene oxide I, reaction of isocyanate 2-OCNC6H4C6H4CO2Me-2, formed from acyl azide 2-N3COC6H4C6H4CO2Me-2 by Curtius rearrangement, gave 71% phenanthridine II. Catalyst loadings down to 1 mol % have been used with little or no loss in reaction efficiency. The intimate involvement of the phosphine oxide in the catalytic cycle has been verified by in situ IR spectroscopy.

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