400608-31-3

Basic information

• Product Name: Benzene, 1,3-dimethoxy-5-[(4-methoxyphenyl)ethynyl]-
• CAS NO: 400608-31-3
• Molecular Formula: C17H16O3
• Molecular Weight: 268.312
• Mol File: 400608-31-3.mol
• Article Data: 8

Chemical Properties

• CAS DataBase Reference: Benzene, 1,3-dimethoxy-5-[(4-methoxyphenyl)ethynyl]-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, 1,3-dimethoxy-5-[(4-methoxyphenyl)ethynyl]-(400608-31-3)
• EPA Substance Registry System: Benzene, 1,3-dimethoxy-5-[(4-methoxyphenyl)ethynyl]-(400608-31-3)

Safety Data

• Hazardous Substances Data: 400608-31-3(Hazardous Substances Data)

Upstream product

• 100-66-3 methoxybenzene 
• 171290-52-1 1-Ethynyl-3,5-dimethoxy-benzene 
• 696-62-8 para-iodoanisole 
• 10272-07-8 3.5-dimethoxyaniline 
• 86988-56-9 3,5-Dimethoxy-benzenediazonium; chloride 
• 25245-27-6 1-iodo-3,5-dimethoxybenzene 
• 400608-30-2 1-(3,5-dimethoxyphenyl)-2-(trimethylsilyl)acetylene 
• 768-60-5 4-methoxyphenylacetylen 

Downstream Products

• 1150629-41-6 C₃₄H₃₂O₆ 
• 885263-37-6 4,6-dimethoxy-3-(3,5-dimethoxyphenyl)-2-(4-methoxyphenyl)-1H-inden-1-one 
• 1198193-53-1 2-(3,5-dimethoxyphenyl)-4,6-dimethoxy-3-(4-methoxyphenyl)-1H-inden-1-one 
• 94608-23-8 (Z)-1-(3,5-dimethoxyphenyl)-2-(4-methoxyphenyl)ethene 
• 400608-32-4 5-[(4-hydroxyphenyl)ethynyl]-1,3-benzenediol 
• 22255-22-7 3,5,4'-trimethoxy-trans-stilbene 
• 501-36-0 (E)-5-[2-4-(hydroxyphenyl)ethenyl]-1,3-benzenediol 

Relevant articles and documents

A Simple Nickel Catalyst Enabling an E-Selective Alkyne Semihydrogenation

Stereoselective alkyne semihydrogenations are attractive approaches to alkenes, which are key building blocks for synthesis. With regards to the most atom-economic reducing agent dihydrogen (H2), only few catalysts for the challenging E-selective alkyne semihydrogenation have been disclosed, each with a unique substrate scope profile. Here, we show that a commercially available nickel catalyst facilitates the E-selective alkyne semihydrogenation of a wide variety of substituted internal alkynes. This results in a simple and broadly applicable overall protocol to stereoselectively access E-alkenes employing H2, which could serve as a general method for synthesis.

Palladium-catalyzed annulation of alkynes with ortho -halide-containing benzyl alcohols in aqueous medium

The Pd-catalyzed annulations of ortho-halide-containing benzyl alcohols with alkynes for the synthesis of indenones were achieved in aqueous Triton X-100 micelles with good yields and wide substrate scopes. Moreover, the indenones obtained in this procedure can be further functionalized to form some more synthetic useful derivatives via an environmental-friendly way.

PROCESS FOR THE PRODUCTION OF SUBSTITUTED ELECTRON RICH DIPHENYLACETYLENES

The present invention relates to an improved process of production of substituted diphenylacetylenes (tolanes) of formula (I) which are starting materials for production of stilbenes products.