19753-63-0

Basic information

• Product Name: Phosphonium, (2-oxoethyl)triphenyl-, bromide
• CAS NO: 19753-63-0
• Molecular Formula: C20H18OP.Br
• Molecular Weight: 385.24
• Mol File: 19753-63-0.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: Phosphonium, (2-oxoethyl)triphenyl-, bromide(CAS DataBase Reference)
• NIST Chemistry Reference: Phosphonium, (2-oxoethyl)triphenyl-, bromide(19753-63-0)
• EPA Substance Registry System: Phosphonium, (2-oxoethyl)triphenyl-, bromide(19753-63-0)

Safety Data

• Hazardous Substances Data: 19753-63-0(Hazardous Substances Data)

Upstream product

• 603-35-0 triphenylphosphine 
• 17157-48-1 bromoacetaldehyde 

Downstream Products

• 2136-75-6 (triphenylphosphoranylidene)acetaldehyde 
• 129414-18-2 4(R)-benzoyloxy-2(E),6(Z),9(Z)-pentadecatrienal 
• 121525-75-5 4(S)-benzoyloxy-2(E),6(Z),9(Z)-pentadecatrienal 
• 94579-37-0 Triphenylphosphin-brom-formyl-methylen 

Relevant articles and documents

Stereoselective synthesis of (6Z,8E)-undeca-6,8,10-trien-3-one (yuzunone) for its characterization in yuzu and various citrus essential oils

(6Z,8E)-Undeca-6,8,10-trien-3-one (yuzunone) is reported to be one of the main olfactory contributors of the specific fruity-green-balsamic odor of yuzu peel oil. Using an original stereoselective synthesis, we prepared a pure sample of yuzunone, which was used as a reference compound to check its presence by GC–MS and GC–O in 5 commercial samples of yuzu and citrus essential oils. Surprisingly, we could not detect yuzunone by GC–MS in any of our samples. However, it could be detected by a small part of the panelists involved in GC–O/AEDA experiments in a yuzu commercial oil, but its olfactory contribution proved to be very limited.

Preparation method of (formylmethylene) triphenyl orthophosphonium

The invention discloses a preparation method of (formylmethylene) triphenyl orthophosphonium, and relates to the technical field of chemical substance preparation. The preparation method specificallycomprises the following steps of: carrying out a hydrolysis reaction on 2-bromo-1,1-dimethoxyethane under an acidic condition to obtain 1-bromoacetaldehyde; reacting 1-bromoacetaldehyde with triphenylphosphine to obtain a transition state intermediate quaternary phosphine salt namely 2-aldehyde ethyl triphenylphosphine bromide; and adding alkali into an aprotic solvent to obtain a product namely (formylmethylene) triphenyl orthophosphonium by losing one molecule of hydrogen bromide. The preparation method provided by the invention has the advantages of short synthesis route, easy synthesis, simple operation, cheap and easily obtained raw materials, less side reactions, high yield and high purity of the prepared (formylmethylene) triphenyl orthophosphonium, and is suitable for industrial production.