7727-33-5

Usage

Uses

Used in Organic Synthesis:
1,1,2,2-Tetrakis(4-hydroxyphenyl)ethane is used as a key intermediate in the synthesis of various organic compounds, including polymers, pharmaceuticals, and agrochemicals. Its hydroxyphenyl groups can undergo a range of chemical reactions, such as esterification, etherification, and condensation, enabling the formation of diverse molecular structures.
Used in Polymer Industry:
In the polymer industry, 1,1,2,2-Tetrakis(4-hydroxyphenyl)ethane is used as a monomer for the production of high-performance polymers, such as polycarbonates, polyesters, and polyethers. These polymers exhibit excellent mechanical properties, thermal stability, and chemical resistance, making them suitable for applications in automotive, electronics, and aerospace industries.
Used in Pharmaceutical Industry:
1,1,2,2-Tetrakis(4-hydroxyphenyl)ethane is used as a starting material for the synthesis of various pharmaceutical compounds, including antibiotics, anti-inflammatory drugs, and antiviral agents. Its ability to form complex molecular structures through its hydroxyphenyl groups allows for the development of novel drug candidates with improved therapeutic properties.
Used in Agrochemical Industry:
In the agrochemical industry, 1,1,2,2-Tetrakis(4-hydroxyphenyl)ethane is used as a precursor for the synthesis of various agrochemicals, such as pesticides, herbicides, and insecticides. Its versatility in organic synthesis enables the development of new and effective agrochemicals to address challenges in agriculture and crop protection.

InChI:InChI=1/C26H22O4/c27-21-9-1-17(2-10-21)25(18-3-11-22(28)12-4-18)26(19-5-13-23(29)14-6-19)20-7-15-24(30)16-8-20/h1-16,25-30H

Upstream product

• 60785-20-8 α,β-dichlorovinyl phenyl ether 
• 108-95-2 phenol 
• 411238-15-8 phenyl-(1,1,2-trichloro-ethyl)-ether 
• 5173-27-3 1,2-bis(4-hydroxyphenyl)-ethane-1,2-diol 
• 131543-46-9 Glyoxal 
• 81-90-3 phenolphthalin 
• 139-02-6 sodium phenoxide 
• 611-99-4 4,4'-Dihydroxybenzophenone 
• 445478-20-6 C₅₄H₃₈O₈ 

Downstream Products

• 1265899-33-9 4,4'-(ethane-1,1-p-phenol-2,2-p-phenoxy)phthalonitrile 

Relevant academic research and scientific papers

Novel, green and efficient method for synthesizing tetraphenolic ethane

The invention discloses a novel, green and efficient method for synthesizing tetraphenolic ethane, and belongs to the field of organic chemistry. The structural formula of the tetraphenolic ethane isshown as 1. The synthesis method of the tetraphenolic ethane comprises the following four steps: synthesis of a photocatalyst CCN-K, synthesis of 4, 4'-(1, 2-bis (4-(benzyloxy) phenyl) ethane 1, 2-diyl) bis (2, 6-di-tert-butylphenol), synthesis of 4, 4'-(1, 2, bis (4-hydroxy phenyl) ethane-1, 2-diyl) bis (2, 6-di-tert-butylphenol) and synthesis of tetraphenolic ethane. The method has the technicaleffects that firstly, the synthetic product tetraphenol ethane plays an important role in the fields of printed circuit boards, electronic and electrical materials, packaging materials, adhesives andthe like; secondly, visible light catalytic synthesis is inserted into the method, so that the method is an efficient and safe environment-friendly technology; and finally, the cost is low, and large-scale preparation can be realized.

BENZOXAZINE-BASED MIXTURE AND USE THEREOF

The present invention relates to a benzoxazine-based mixture and a use thereof and, more specifically, to a benzoxazine-based mixture and a use of a cured product in which the benzoxazine-based mixture is cured, wherein the benzoxazine-based mixture has high dielectric characteristics, heat resistant characteristics, and flame-retardant characteristics by comprising a benzoxazine ring in a molecular structure, and thus can be applied to a sealing material, a molding material, a template material, an adhesive, a material for an electric insulation paint, and the like, which are used for a copper clad laminate or an electronic part, used in a printed circuit board.

METHOD FOR PRODUCING 1,2-PHENYLETHANE COMPOUND USING ATOM TRANSFER RADICAL COUPLING REACTION

An object of the present invention is to provide a method capable of producing a 1,2-phenylethane compound with extremely high yield in a short amount of time. Disclosed is a method for producing a 1,2-phenylethane compound, which comprises subjecting a compound represented by formula (I): wherein Ra represents a hydrogen atom or a substituted or unsubstituted phenyl group; Rb represents a hydrogen atom or a substituent; n represents an integer of 1 to 5 and, when n is 2 or more, Rb may be the same or different, or may be combined with each other to form a ring; and X represents a halogen atom; to a coupling reaction in the presence of a transition metal complex to produce a compound represented by formula (II):

METHOD FOR PRODUCING TETRAKISPHENOLETHANE COMPOUND

PROBLEM TO BE SOLVED: To provide a method for producing a tetrakisphenolethane compound represented by formula (3) in a high yield and with a high production efficiency. SOLUTION: The method for producing a tetrakisphenol compound represented by formula (3) (wherein R1, R3, R4, and R6 are each hydrogen, a 1-20C alkyl group, a halogen or the like; R2 and R5 are each hydrogen, a 1-20C alkyl group, a 1-20C alkoxyalkyl group or the like; and R9 and R10 are each hydrogen, a 1-20C alkyl group, a halogen, a 1-20C alkoxy group, a 1-20C haloalkoxy group or the like) comprises reacting a dioxyethane compound represented by formula (1) (wherein R1, R2, R3, R4, R5, and R6 are the same as defined above; and R7 and R8 are each hydrogen, a 1-20C alkyl group, a 1-20C alkoxyalkyl group or the like ) with a phenol represented by formula (2) (wherein R9 and R10 are the same as defined above) in the presence of an acid catalyst. COPYRIGHT: (C)2006,JPOandNCIPI