4,6-ditolyl-3-(phenylethynyl)-1,2-oxathiine 2,2-dioxide

Base Information

Chemical Name:4,6-ditolyl-3-(phenylethynyl)-1,2-oxathiine 2,2-dioxide
CAS No.:1279694-87-9
Molecular Formula:C₂₆H₂₀O₃S
Molecular Weight:412.509
Hs Code.:

Synonyms:4,6-ditolyl-3-(phenylethynyl)-1,2-oxathiine 2,2-dioxide

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Chemical Property of 4,6-ditolyl-3-(phenylethynyl)-1,2-oxathiine 2,2-dioxide

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Technology Process of 4,6-ditolyl-3-(phenylethynyl)-1,2-oxathiine 2,2-dioxide

There total 4 articles about 4,6-ditolyl-3-(phenylethynyl)-1,2-oxathiine 2,2-dioxide which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 55.0%

: 1279694-72-2
3-bromo-4,6-ditolyl-[1,2]-oxathiine 2,2-dioxide

: 536-74-3
phenylacetylene

: 1279694-87-9
4,6-ditolyl-3-(phenylethynyl)-1,2-oxathiine 2,2-dioxide

Guidance literature:: 3-bromo-4,6-ditolyl-[1,2]-oxathiine 2,2-dioxide; phenylacetylene; With triethylamine; triphenylphosphine; In tetrahydrofuran; at 20 ℃; for 0.0833333h;

With copper(l) iodide; palladium dichloride; In tetrahydrofuran; at 77 ℃; for 24h;
DOI:10.1080/17415993.2010.537339

Reference yield:

: 106-38-7
para-bromotoluene

: 1279694-87-9
4,6-ditolyl-3-(phenylethynyl)-1,2-oxathiine 2,2-dioxide

Guidance literature:: Multi-step reaction with 5 steps

2.1: 18-crown-6 ether; potassium hydroxide / benzene

3.1: chlorosulfonate de trimethylsilyle / 1,4-dioxane; chloroform / 48 h / 0 - 20 °C

4.1: bromine / chloroform / 0.75 h / 65 °C

5.1: triethylamine; triphenylphosphine / tetrahydrofuran / 0.08 h / 20 °C

5.2: 24 h / 77 °C

With 18-crown-6 ether; chlorosulfonate de trimethylsilyle; bromine; triethylamine; triphenylphosphine; potassium hydroxide; In tetrahydrofuran; 1,4-dioxane; chloroform; benzene; 1.1: Sonogashira coupling / 2.1: retro Favorski reaction / 5.1: Sonogashira coupling / 5.2: Sonogashira coupling;
DOI:10.1080/17415993.2010.537339

Reference yield:

: 79756-91-5
2-methyl-4-(4-methylphenyl)-3-butyn-2-ol

: 1279694-87-9
4,6-ditolyl-3-(phenylethynyl)-1,2-oxathiine 2,2-dioxide

Guidance literature:: Multi-step reaction with 4 steps

1.1: 18-crown-6 ether; potassium hydroxide / benzene

2.1: chlorosulfonate de trimethylsilyle / 1,4-dioxane; chloroform / 48 h / 0 - 20 °C

3.1: bromine / chloroform / 0.75 h / 65 °C

4.1: triethylamine; triphenylphosphine / tetrahydrofuran / 0.08 h / 20 °C

4.2: 24 h / 77 °C

With 18-crown-6 ether; chlorosulfonate de trimethylsilyle; bromine; triethylamine; triphenylphosphine; potassium hydroxide; In tetrahydrofuran; 1,4-dioxane; chloroform; benzene; 1.1: retro Favorski reaction / 4.1: Sonogashira coupling / 4.2: Sonogashira coupling;
DOI:10.1080/17415993.2010.537339