1,2-Cyclopropadiene

Base Information

• Chemical Name: 1,2-Cyclopropadiene
• CAS No.: 16165-40-5
• Molecular Formula: C₃H₂
• Molecular Weight: 38.0489
• Nikkaji Number: J1.253.489B,J1.883.699H,J695.508H,J1.656.357I
• Mol file: 16165-40-5.mol

Synonyms:1,2-Cyclopropadiene;Cyclopropan 1,3-Dien;Cyclopropenylidene radical;Cyclopropene-1,3-diylradical

Chemical Property of 1,2-Cyclopropadiene

Chemical Property:

• Vapor Pressure: 4460mmHg at 25°C
• Boiling Point: °Cat760mmHg
• Flash Point: °C
• PSA: 0.00000
• Density: 0.86g/cm³
• LogP: 0.63750
• XLogP3: 0.4
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 0
• Exact Mass: 38.0156500638
• Heavy Atom Count: 3
• Complexity: 42.9

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C1=C=C1

Technology Process of 1,2-Cyclopropadiene

There total 2 articles about 1,2-Cyclopropadiene 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:

Spiro2,7.04,6>heptan> (81787-74-8) → 3-methoxypyridine (7295-76-3,1232006-42-6) + cyclopropenylidene (16165-40-5,98206-68-9) + benzene (71-43-2,26181-88-4,54682-86-9,13967-78-7,174973-66-1)

Guidance literature:

at 466.84 ℃; Pyrolysis;

DOI:10.1039/c6cp01068g

Reference yield:

spiro[cyclopropene-3,3'-tetracyclo[3.2.0.0(2,7).0(4,6)]heptane] (81787-74-8) → cyclopropenylidene (16165-40-5,98206-68-9) + benzene (71-43-2,26181-88-4,54682-86-9,13967-78-7,174973-66-1)

Guidance literature:

at 820 - 920 ℃; for 5h; under 1E-05 - 0.0001 Torr;

Reference yield:

cyclopropenylidene (16165-40-5,98206-68-9) → propynylidene (2008-19-7,67152-18-5) + propadienylidene (60731-10-4,117992-80-0)

Guidance literature:

for 2.5h; Product distribution; Irradiation; conversion depending on time and wavelength;

DOI:10.1021/ja00251a023

upstream raw materials:

spiro[cyclopropene-3,3'-tetracyclo[3.2.0.0(2,7).0(4,6)]heptane]

Spiro2,7.0^4,6>heptan>

Downstream raw materials:

propynylidene

propadienylidene