930-38-1

Basic information

• Product Name: 2,5-dihydro-1-methyl-1H-phosphole 1-oxide
• Synonyms: 2,5-dihydro-1-methyl-1H-phosphole 1-oxide;1-Methyl-1-oxo-Phospholene
• CAS NO: 930-38-1
• Molecular Formula: C₅H₉OP
• Molecular Weight: 116.098121
• EINECS: 213-217-2
• Mol File: 930-38-1.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 274.9 °C at 760 mmHg
• Flash Point: 120 °C
• Appearance: /
• Density: 1.03 g/cm³
• Vapor Pressure: 0.00884mmHg at 25°C
• Refractive Index: 1.446
• CAS DataBase Reference: 2,5-dihydro-1-methyl-1H-phosphole 1-oxide(CAS DataBase Reference)
• NIST Chemistry Reference: 2,5-dihydro-1-methyl-1H-phosphole 1-oxide(930-38-1)
• EPA Substance Registry System: 2,5-dihydro-1-methyl-1H-phosphole 1-oxide(930-38-1)

Safety Data

• Hazardous Substances Data: 930-38-1(Hazardous Substances Data)

Usage

General Description

2,5-dihydro-1-methyl-1H-phosphole 1-oxide is a specific type of organic chemical compound. As the name suggests, it contains elements including carbon (C), hydrogen (H), and phosphorus (P), along with oxygen (O). Notably, it is an oxide which refers to any chemical compound that contains one or more oxygen atoms. It also falls under the category of phospholes which are a series of compounds that contain a five-membered ring with the phosphorus atom as one of the vertices of the ring. Due to its specific structural characteristic, this chemical would be classified as a heterocyclic compound. Its properties, usage and production method would be determined by its structural configuration and the other functional groups or atoms it may contain.

InChI:InChI=1/C5H9OP/c1-7(6)4-2-3-5-7/h2-3H,4-5H2,1H3

Upstream product

• 39063-70-2 1-oxo-1-hydroxyphospholene, β, γ-isomer 
• 676-58-4 methylmagnesium chloride 
• 872-37-7 1-methyl-2,5-dihydro-1H-phosphole 
• 111-36-4 n-butyl isocyanide 
• 624-83-9 methyl isocyanate 

Downstream Products

• 872-45-7 1-methyl-2,3-dihydro-1H-phosphole 1-oxide 
• 73312-47-7 3ξ-methyl-3ξ-oxo-(1rH,5cH)-3λ⁵-phospha-bicyclo[3.2.0]heptane-6,7-dione bis-phenylhydrazone 
• 61183-61-7 3,4-epoxy-1,1-dimethyl-phospholanium; iodide 
• 61183-63-9 3r,4c-epoxy-1-methyl-phospholane 1c-oxide 
• 61247-91-4 3r,4c-epoxy-1-methyl-phospholane 1t-oxide 
• 873-15-4 1-methyl-3,4-dibromophospholane 
• 36163-71-0 1-methyl-1-oxo-2,5-dihydro-1H-1λ⁵-phosphole-3-carboxylic acid 
• 36163-70-9 1-Methyl-2-phospholenoxid-2-carbonsaeure 

Relevant articles and documents

Preparation method of phospholene oxide, substituted phospholene oxide and preparation method of substituted phospholene oxide

The invention relates to a preparation method of phospholene oxide, substituted phospholene oxide and a preparation method of the substituted phospholene oxide and belongs to the technical field of organic synthesis. The preparation method of the phospholene oxide comprises the following steps: 1) enabling phosphorus trihalide and chloroethanol to react at -10 to 40 DEG C for 0.5 to 3h so as to obtain a compound shown as a formula I; 2) enabling the compound shown as the formula I, a catalyst, a polymerization inhibitor and 1,3-butadiene to react at room temperature for 4 to 10h; then raisingthe temperature to 40 to 80 DEG C and reacting for 12 to 24h; then raising the temperature to 80 to 100 DEG C and reacting for 8 to 14h to obtain the phospholene oxide. The e preparation method of thephospholene oxide, provided by the invention, takes the phosphorus halide and the chloroethanol as raw materials, and the raw materials are easy to obtain and the price is low; reaction conditions are moderate and the method is simple and feasible and is low-cost.

Structure of diene-phosphonous dihalide addition products and of derived phospholenes and phospholene oxides.

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