Category: 707-61-9

Arbuzov, B. A.; Zhitinkina, A. K.; Vizel, A. O.; Ivanova, E. F.; Ivanovskaya, K. M.; Giniyatullin, R. S. published the article 《Conversion of diphenylmethane diisocyanate to poly(carbodiimide) during catalysis by phospholene derivatives》. Keywords: polymerization catalyst phospholene derivative; catalyst polymerization phenylmethane isocyanate.They researched the compound: 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide( cas:707-61-9 ).Recommanded Product: 707-61-9. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:707-61-9) here.

Activity of phospholene derivatives as catalysts for polymerization of diphenylmethane diisocyanate (I) [26447-40-5] increased with increasing electron-donor activity of the substituent on the P atom of the catalyst. Kinetics data showed a dependence of the catalytic activity of phospholene derivatives on their structure, and the highest activity showed oxides of tertiary phosphines, whereas introduction of O and Cl in the ester radical decreased the polymerization rate. A nucleophilic character of the catalyst in the formation of carbodiimide-containing polymers was suggested. The highest polymerization rate of I was observed in the presence of 1-oxo-1-ethyl-3-methyl-2-phospholene (II) [56255-62-0], 1-oxo-1,3-dimethyl-3-phospholene [15450-79-0] and 1-oxo-3-methyl-1-phenyl-2-phospholene [707-61-9] as catalysts. A combined addition of I and 1-oxo-1-ethoxy-3-methyl-3-phospholene [697-31-4] had an additive catalytic effect on polymerization rate of I.

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Electric Literature of C11H13OP. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. 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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Formula: C11H13OP. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. 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. Author is Yamashita, Junko; Suyama, Takuya; Asai, Kazuhide; Yamada, Manabu; Niimi, Taishi; Fujie, Michio; Nakamura, Satoki; Ohnishi, Kazunori; Yamashita, Mitsuji.

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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Marsden, Stephen P.; McGonagle, Alison E.; McKeever-Abbas, Ben published an article about the compound: 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide( cas:707-61-9,SMILESS:CC1=CP(CC1)(C2=CC=CC=C2)=O ).Recommanded Product: 707-61-9. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:707-61-9) through the article.

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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Product Details of 707-61-9. 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: 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide, is researched, Molecular C11H13OP, CAS is 707-61-9, about Recycling the Waste: The Development of a Catalytic Wittig Reaction.

The first Wittig reaction catalytic in phosphine has been developed. A variety of heteroaryl, aryl, and alkyl aldehydes could be efficiently converted to the corresponding alkenes in moderate to high yield with the utilization of the phosphine oxide precatalyst I.

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SDS of cas: 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 Synthesis and application of aqueous cationic polycarbodiimide crosslinking agent. Author is Tong, Rong; Pang, Xiaoyan; Sun, Jing; Ding, Zhiwen; Jia, Jizhang.

Aqueous cationic polycarbodiimide crosslinking agent was synthesized with isophorone diisocyanate(IPDI), polypropylene glycol(PPG400), N,N-di-Me ethanolamine(DMEA) and 3-methyl-1-phenyl-2-phospholene-1-oxide(MPPO) as raw materials. The influences of synthesis conditions such as the dosage of catalysis agent, reaction time, reaction temperature, nitrogen jet velocity, hydrophilic end-blocking agent, blocking temperature, and the dosage of end-blocking agent on the properties of product were investigated. The developed crosslinking agents were introduced to protein finishing agent. And it is found that the properties of obtained finishing film agent are better in the water resistance, alk. resistance, solvent resistance and flexibility. Also, the tensile strength of film increases with a little decrease in brightness and transparency.

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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 Structure of diene-phosphonous dihalide addition products and of derived phospholenes and phospholene oxides, published in 1968, which mentions a compound: 707-61-9, Name is 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide, Molecular C11H13OP, Product Details of 707-61-9.

The cycloadducts of MePCl2 and butadiene, isoprene, 3,4-dimethylbutadiene, or piperylene give rise to 3-phospholene oxides on hydrolysis and 3-phospholenes (I) on reduction with Mg. The cycloadduct from butadiene also contained the 3-phospholene ring. The 3-phospholene oxides may be caused to rearrange to 2-phospholene oxides either thermally or by refluxing aqueous base. Acid treatment was effective only for rearranging the 3-Me derivative The 3,4-di-Me derivative resisted rearrangement conditions. PhPBr2 (synthesized by a new method from PhP(O)(OH)Cl and PBr3) also gave an adduct with isoprene shown by N.M.R. studies to contain the 3-phospholene ring, which was preserved in the oxide and phospholene. However, the isoprene-PhPCl2 adduct contained the 2-phospholene ring; the derived oxide and phospholene were also the 2-isomers. Independent syntheses of the isomeric 1-phenyl-3-methylphospholene oxides confirmed the assignments. The adduct from piperylene and PhPBr2 also gave on hydrolysis the 3-phospholene oxide, while that from PhPCl2 gave the 2-isomer. 26 references.

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Name: 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 Synthesis of photosensitive polycarbodiimide. Author is Mochizuki, Amane; Takeshi, Kazumasa; Haba, Osamu; Kato, Sadao; Ueda, Mitsuru.

A neg.-working photosensitive polymer based on polycarbodiimide (PCD) and {[(4,5-dimethoxy-2-nitrobenzyl)oxy]carbonyl}-2-methylpiperidine (I) as a photoamine generator(PAG) has been developed. The end-capped PCDs with number average mol. weights of 1500 and 2500 were prepared by polycondensation of tolylene 2,4-diisocyanate (TDI) in the presence of m-tolyl isocyanate and 3-methyl-1-phenyl-2-phospholene-1-oxide as an end-capping agent and a catalyst, resp. PCDs were amorphous and soluble in common organic solvents, such as toluene, chloroform, and cyclohexanone. Thermogravimetry of the polymers showed good thermal stability, indicating that a 10% weight loss of the polymers was at 480° in nitrogen. The PCD films were transparent above 360 nm. The PCD containing I showed a sensitivity of 225 mJ/cm2 and a contrast of 1.5, when it was post-baked at 90°C sec, followed by development with toluene at 25°C.

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Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 707-61-9, is researched, SMILESS is CC1=CP(CC1)(C2=CC=CC=C2)=O, Molecular C11H13OPJournal, Zhongguo Pige called Synthesis and application of aqueous polycarbodiimide crosslinking agent(I): aqueous cationic polycarbodiimide crosslinking agent, Author is Tong, Rong; Pang, Xiaoyan; Sun, Jing; Ding, Zhiwen; Jia, Jizhang, the main research direction is aqueous cationic polycarbodiimide crosslinking agent synthesis.COA of Formula: C11H13OP.

Aqueous cationic polycarbodiimide crosslinking agent was synthesized with isophorone diisocyanate (IPDI), polypropylene glycol (PPG400), N,N-dimethylethanolamine (DMEA) and 3-methyl-1-phenyl-2-phosopholene-1-oxide (MPPO) as raw materials. The influences of synthesis conditions such as the dosage of catalyst, reaction time, reaction temperature, nitrogen jet velocity, hydrophilic end-blocking agent, end-blocking temperature and the dosage of end-blocking agent on the blocking reaction were investigated. The developed crosslinking agents were applied to protein finishing agent. And it is found that the properties of obtained finishing film agent are better in the water resistance, alkali resistance, solvent resistance and flexibility. Also, the tensile strength of film increases with a little decrease in brightness and transparency.

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The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide, is researched, Molecular C11H13OP, CAS is 707-61-9, about Organophosphorus-catalyzed diaza-Wittig reaction: application to the synthesis of pyridazines, the main research direction is pyridazine preparation organophosphorus catalyst diaza Wittig.SDS of cas: 707-61-9.

The elaboration of the first organophosphorus-catalyzed diaza-Wittig reaction is reported. This catalytic reaction is applied to the synthesis of substituted pyridazine I (R1 = H, Me; R2 = Et, Ph, Cy, p-OMe-C6H4, o-F-C6H4, iPr, thiophenyl) and phthalazine derivatives bearing electron-withdrawing groups (R3 = CO2Me, COPh, SO2Ph) with good to excellent yields from substrates containing a diazo functionality II as the starting material and a phospholene oxide as the catalyst.

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