Category: 707-61-9

Product Details 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 MALDI-TOF/TOF CID Study of Polycarbodiimide Branching Reactions. Author is Gies, Anthony P.; Heath, William H.; Keaton, Richard J.; Jimenez, Jorge J.; Zupancic, Joseph J..

A combination of MALDI-TOF MS and TOF/TOF collision-induced dissociation (CID) experiments was conducted on toluene diisocyanate (TDI) based carbodiimide and Ph isocyanate (PI) carbodiimide mixtures to examine their degradation mechanisms and identify “”fingerprint”” side products associated with each of their synthesis. Findings include the first observance of the 3-methyl-1-phenyl-2-phospholene-1-oxide (MPPO)/carbodiimide (CDI) catalyst-attached intermediate and the use of CID fragmentation to verify its chem. structure and degradation processes. This work is significant for two reasons: (1) it identifies extensive branching as the root-cause of viscosity build-up in carbodiimides and (2) it presents a BF3-initiated mechanism leading to polyguanidine formation.

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1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem

Name: 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide. 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 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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Reference:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem

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.Kerek, F.; Ostrogovich, G. researched the compound: 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide( cas:707-61-9 ).Computed Properties of C11H13OP.They published the article 《NMR and uv spectral studies of some 1-aryl-substituted 3-methyl-2-phospholene oxides》 about this compound( cas:707-61-9 ) in Revue Roumaine de Chimie. Keywords: phospholene aryl oxide NMR UV. We’ll tell you more about this compound (cas:707-61-9).

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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Reference:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《A chiral shift reagent for measurement of optical purities of chiral phosphine oxides》. Authors are Zhou, Zhenhua.The article about the compound:4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxidecas:707-61-9,SMILESS:CC1=CP(CC1)(C2=CC=CC=C2)=O).Category: dioxole. Through the article, more information about this compound (cas:707-61-9) is conveyed.

(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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1,3-Benzodioxole – Wikipedia,
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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.Safety of 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide.

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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Reference:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide( cas:707-61-9 ) is researched.Product Details of 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》 about this compound( cas:707-61-9 ) in Vysokomolekulyarnye Soedineniya, Seriya A. Keywords: polymerization catalyst phospholene derivative; catalyst polymerization phenylmethane isocyanate. Let’s learn more about this compound (cas:707-61-9).

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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1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem

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 Synthesis of Multifunctional Alkenes from Substituted Acrylates and Aldehydes via Phosphine-Catalyzed Wittig Reaction, published in 2015, which mentions a compound: 707-61-9, mainly applied to alkene ethoxycarbonyl aroylmethyl diastereoselective preparation; aldehyde diastereoselective Wittig reaction aroyl acrylate phosphine catalyst, Reference of 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide.

An efficient synthesis of multifunctional alkenes (E)-R1C(O)CH2C(CO2Et):CHR2 (R1 = Me, Ph, 4-O2NC6H4, 2-thienyl, 2-naphthyl, etc.; R2 = Ph, 3-O2NC6H4, 2-furyl, 4-pyridinyl, etc.) starting from substituted acrylates (E)-R1C(O)CH:CHCO2Et and aldehydes R2CHO has been developed via phosphine-catalyzed Wittig reactions. The reactions proceed smoothly even under mild conditions (30-60 °C) via a phosphine/phosphine oxide catalytic cycle using phenylsilane as the reducing agent. According to this simple protocol, the desired products are obtained in moderate to excellent yields as single stereoisomers.

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Reference:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem

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 Structure of isoprene-phenylphosphonous dihalide cyclo-adducts. Author is Quin, Louis D.; Barket, Thomas P..

The cyclo-adduct of isoprene and PhPCl2, which gives 3-methyl-1-phenyl-2-phospholene oxide (I), b0.15 150°, on hydrolysis, was found to contain the 2 phospholene ring system. The PhPBr2 adduct contains the 3-phospholene ring system and gives 3-methyl-1-phenyl-3-phospholene oxide (II), b0.24 133-4°, on hydrolysis. The PhCH2Br salts of I and II m. 178-80° and 184-5°, resp.

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Reference:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem

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 A novel stereocontrolled preparation of phospho sugar derivatives from phospholenes. Author is Yamashita, Mitsuji; Uchimura, Miyuki; Iida, Akihito; Parkanayi, Laszlo; Clardy, Jon.

Oxidation of 2-phospholene 1-oxides I (R = Ph, R1, R2 = H or Me; R = OMe, R1 = H, R2 = Me) with OsO4-KClO3 in aqueous THF afforded vicinal diols in 35-91% yields. The structure of diol II was established by preparation of its 1,2-di-O-acetyl and 1,2-O-isopropylidene derivatives and by x-ray crystallog. anal.

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Reference:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Structure of isoprene-phenylphosphonous dihalide cyclo-adducts》. Authors are Quin, Louis D.; Barket, Thomas P..The article about the compound:4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxidecas:707-61-9,SMILESS:CC1=CP(CC1)(C2=CC=CC=C2)=O).Formula: C11H13OP. Through the article, more information about this compound (cas:707-61-9) is conveyed.

The cyclo-adduct of isoprene and PhPCl2, which gives 3-methyl-1-phenyl-2-phospholene oxide (I), b0.15 150°, on hydrolysis, was found to contain the 2 phospholene ring system. The PhPBr2 adduct contains the 3-phospholene ring system and gives 3-methyl-1-phenyl-3-phospholene oxide (II), b0.24 133-4°, on hydrolysis. The PhCH2Br salts of I and II m. 178-80° and 184-5°, resp.

Here is just a brief introduction to this compound(707-61-9)Formula: C11H13OP, more information about the compound(4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide) is in the article, you can click the link below.

Reference:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem