2,3,4,5-tetraethyl-6-(phenylethynyl)-1-(trimethylsilylethynyl)-2,3,4,5-tetracarba-nido-hexaborane⁽⁶⁾

Base Information

• Chemical Name: 2,3,4,5-tetraethyl-6-(phenylethynyl)-1-(trimethylsilylethynyl)-2,3,4,5-tetracarba-nido-hexaborane⁽⁶⁾
• CAS No.: 770742-96-6
• Molecular Formula: C₂₅H₃₄B₂Si
• Molecular Weight: 384.252

Synonyms:2,3,4,5-tetraethyl-6-(phenylethynyl)-1-(trimethylsilylethynyl)-2,3,4,5-tetracarba-nido-hexaborane⁽⁶⁾

Chemical Property of 2,3,4,5-tetraethyl-6-(phenylethynyl)-1-(trimethylsilylethynyl)-2,3,4,5-tetracarba-nido-hexaborane⁽⁶⁾

Chemical Property:

Purity/Quality:

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Technology Process of 2,3,4,5-tetraethyl-6-(phenylethynyl)-1-(trimethylsilylethynyl)-2,3,4,5-tetracarba-nido-hexaborane⁽⁶⁾

There total 3 articles about 2,3,4,5-tetraethyl-6-(phenylethynyl)-1-(trimethylsilylethynyl)-2,3,4,5-tetracarba-nido-hexaborane⁽⁶⁾ 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: 85.0%

2,3,4,5-tetraethyl-1-iodo-6-(phenylethynyl)-2,3,4,5-tetracarba-nido-hexaborane(6) (770742-85-3) + lithium trimethylsilylacetylenide (54655-07-1) → 2,3,4,5-tetraethyl-6-(phenylethynyl)-1-(trimethylsilylethynyl)-2,3,4,5-tetracarba-nido-hexaborane(6) (770742-96-6)

Guidance literature:

With ZnCl₂; tetrakis(triphenylphosphine) palladium⁽⁰⁾; In tetrahydrofuran; (N2), ligand in THF at room temp. treated with ZnCl2, stirred for 3 h, added to borane and Pd(PPh3)4, stirred for 3 d, refluxed for 10 d; evapd., extd.(hexane), filtered, dried (vac.), pptd.(hexane), crystd. at-28°C, elem. anal.;

DOI:10.1002/ejic.200300938

Reference yield:

2,3,4,5-tetraethyl-1,6-diiodo-2,3,4,5-tetracarba-nido-hexaborane(6) (172166-33-5) → 2,3,4,5-tetraethyl-6-(phenylethynyl)-1-(trimethylsilylethynyl)-2,3,4,5-tetracarba-nido-hexaborane(6) (770742-96-6)

Guidance literature:

Multi-step reaction with 2 steps

1: n-BuLi / hexane

2: ZnCl₂ / tetrakis(triphenylphosphine) palladium⁽⁰⁾ / tetrahydrofuran

With n-BuLi; ZnCl₂; tetrakis(triphenylphosphine) palladium⁽⁰⁾; In tetrahydrofuran; hexane;

DOI:10.1002/ejic.200300938

Reference yield:

phenylacetylene (536-74-3) → 2,3,4,5-tetraethyl-6-(phenylethynyl)-1-(trimethylsilylethynyl)-2,3,4,5-tetracarba-nido-hexaborane(6) (770742-96-6)

Guidance literature:

Multi-step reaction with 2 steps

1: n-BuLi / hexane

2: ZnCl₂ / tetrakis(triphenylphosphine) palladium⁽⁰⁾ / tetrahydrofuran

With n-BuLi; ZnCl₂; tetrakis(triphenylphosphine) palladium⁽⁰⁾; In tetrahydrofuran; hexane;

DOI:10.1002/ejic.200300938

upstream raw materials:

2,3,4,5-tetraethyl-1-iodo-6-(phenylethynyl)-2,3,4,5-tetracarba-nido-hexaborane⁽⁶⁾

lithium trimethylsilylacetylenide

2,3,4,5-tetraethyl-1,6-diiodo-2,3,4,5-tetracarba-nido-hexaborane⁽⁶⁾

phenylacetylene

Downstream raw materials:

(η4-bis[2,3,4,5-tetraethyl-1-trimethylsilylethynyl-2,3,4,5-tetracarba-nido-hexaboranyl]diphenyl(cyclobutadiene))(η5-cyclopentadienyl)cobalt(I)

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