499242-44-3

Basic information

• Product Name: 3-Butyn-2-ol,4-(4-ethoxyphenyl)-2-methyl-(9CI)
• Synonyms: 3-Butyn-2-ol,4-(4-ethoxyphenyl)-2-methyl-(9CI)
• CAS NO: 499242-44-3
• Molecular Formula: C₁₃H₁₆O₂
• Molecular Weight: 204.26494
• Product Categories: ETHOXY
• Mol File: 499242-44-3.mol
• Article Data: 3

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 3-Butyn-2-ol,4-(4-ethoxyphenyl)-2-methyl-(9CI)(CAS DataBase Reference)
• NIST Chemistry Reference: 3-Butyn-2-ol,4-(4-ethoxyphenyl)-2-methyl-(9CI)(499242-44-3)
• EPA Substance Registry System: 3-Butyn-2-ol,4-(4-ethoxyphenyl)-2-methyl-(9CI)(499242-44-3)

Safety Data

• Hazardous Substances Data: 499242-44-3(Hazardous Substances Data)

Upstream product

• 588-96-5 4-bromoethoxybenzene 
• 115-19-5 2-methyl-but-3-yn-2-ol 
• 106-41-2 4-bromo-phenol 
• 699-08-1 1-ethoxy-4-iodobenzene 
• 67-64-1 acetone 
• 79887-14-2 4-ethoxyphenylacetylene 

Downstream Products

• 79887-14-2 4-ethoxyphenylacetylene 
• 1117722-84-5 C₁₇H₁₆O₂ 

Relevant articles and documents

An unexpected thermal-ring-rearrangement of benzochromenes to inden-3-yl-naphthols with: P TsOH

Described here is the first report of an unexpected thermal-ring rearrangement (TRR) of benzochromenes to indene derivatives promoted by pTsOH. This cascade ring-rearrangement proceeds through the protonation of benzochromenes by an acid catalyst followed by ring-opening and ring-closure by an intramolecular Friedel-Crafts cyclization to provide a new bicyclic framework, inden-3-yl-naphthols bearing a quaternary center, which also exhibited atropisomerism. Regioselectivity, broad substrate scope, high yields, solvent-free conditions and atom economy are the additional high points of this ring-rearrangement.

High birefringence nematic liquid crystals for display and telecom applications

Several compounds with high birefringence and, having tolane structure were synthesized. For a high polarizability, isothiocyanato (NCS) terminal group was introduced. Another goal of this study was reduction of melting point and smectic phases by introduction of fluorine as lateral substituent. The transition temperatures for all the synthesized compounds and the refractive and dielectric indices for one of the compounds have been determined. Electro-optic (EO) measurements were also performed.