1,3-Cyclobutadiene,1,2,3,4-tetrakis(t-butyl)-

Base Information

• Chemical Name: 1,3-Cyclobutadiene,1,2,3,4-tetrakis(t-butyl)-
• CAS No.: 66809-05-0
• Molecular Formula: C20H36
• Molecular Weight: 276.5
• Hs Code.: 2902199090
• DSSTox Substance ID: DTXSID20216924
• Nikkaji Number: J638.823J
• Wikidata: Q83093241
• Mol file: 66809-05-0.mol

Synonyms:66809-05-0;1,3-Cyclobutadiene,1,2,3,4-tetrakis(t-butyl)-;tetra-t-butylcyclobutadiene;1,3-Cyclobutadiene,1,2,3,4-tetrakis(t-butyl);Tetra-tert-butylcyclobutadiene;DTXSID20216924;1,3-Cyclobutadiene,1,2,3,4-tetrakis(1,1-dimethylethyl)-

Chemical Property of 1,3-Cyclobutadiene,1,2,3,4-tetrakis(t-butyl)-

Chemical Property:

• Vapor Pressure: 0.000523mmHg at 25°C
• Boiling Point: 322.5°C at 760 mmHg
• Flash Point: 147.4°C
• PSA: 0.00000
• Density: 0.879g/cm³
• LogP: 6.77760
• XLogP3: 6.5
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 4
• Exact Mass: 276.281701148
• Heavy Atom Count: 20
• Complexity: 346

Purity/Quality:

85.0-99.8% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: CC(C)(C)C1=C(C(=C1C(C)(C)C)C(C)(C)C)C(C)(C)C

Technology Process of 1,3-Cyclobutadiene,1,2,3,4-tetrakis(t-butyl)-

There total 8 articles about 1,3-Cyclobutadiene,1,2,3,4-tetrakis(t-butyl)- 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: 62.0%

1,2,3-Tri-tert-butyl-3-(1-diazo-2,2-dimethyl-propyl)-cyclopropene (97476-03-4) → di-tert-butylacetylene (17530-24-4) + Tetra-tert-butylcyclobutadien (66809-05-0) + 3,4,5,6-Tetra-tert-butylpyridazine (132806-93-0)

Guidance literature:

at 120 ℃; for 2h;

Reference yield: 20.0%

1,2,3-Tri-tert-butyl-3-(1-diazo-2,2-dimethyl-propyl)-cyclopropene (97476-03-4) → Tetra-tert-butylcyclobutadien (66809-05-0)

Guidance literature:

In octane; at 100 ℃;

DOI:10.1016/S0040-4039(00)71217-2

Reference yield:

Tetra-tert-butyltetrahedarane (66809-06-1) → Tetra-tert-butylcyclobutadien (66809-05-0)

Guidance literature:

With 1,1,3,3,5,5-hexamethyl-d18-1,3,5-trisilacyclohexane; Product distribution; Heating; 1.) 135 deg C, 45 min; 2.) 140 deg C, 15 min; photochemically reversible;

upstream raw materials:

Tetra-tert-butyltetrahedarane

1,2,4,5-Tetra-tert-butyltricyclo<2.1.0.0^2,5>pentan-3-on

2,3,4,5-Tetra-tert-butyl-2,4-cyclopentadien-1-on

1,2,3-Tri-tert-butyl-3-(1-diazo-2,2-dimethyl-propyl)-cyclopropene

Downstream raw materials:

Tetra-tert-butyltetrahedarane