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Synthesis of Triethynylbenzene

IP.com Disclosure Number: IPCOM000048658D
Original Publication Date: 1982-Mar-01
Included in the Prior Art Database: 2005-Feb-09
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Balanson, RD: AUTHOR [+3]

Abstract

For the synthesis of triethynylbenzene, one takes 1,3,5-tribromobenzene and by means of a simple two-step procedure triethynylbenzene is produced in 80 percent yield.

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Synthesis of Triethynylbenzene

For the synthesis of triethynylbenzene, one takes 1,3,5-tribromobenzene and by means of a simple two-step procedure triethynylbenzene is produced in 80 percent yield.

The aromatic halogen-containing material is dissolved in an appropriate solvent (e.g., triethylamine, picoline, etc.) under inert atmosphere and reacted with a mono-substituted acetylene compound (e.g., trimethylsilyl acetylene, 3- methyl-2- utyne-3-ol, etc.) in this presence of an organo-metallic catalyst. The protected aromatic ethynyl compound is then hydrolyzed with base (sodium hydroxide, potassium t-butoxide, etc.) to the desired triethynylbenzene monomer.

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