6708-14-1

Basic information

• Product Name: dicyclobutylidene
• Synonyms: dicyclobutylidene;Cyclobutylidencylclobutane;Δ1,1'-Bi(cyclobutane);Δ1,1'-Bi[cyclobutane];Δ1,1'-Bicyclobutane
• CAS NO: 6708-14-1
• Molecular Formula: C₈H₁₂
• Molecular Weight: 108.20
• Mol File: 6708-14-1.mol
• Article Data: 4

Chemical Properties

• Boiling Point: 137.85°C (rough estimate)
• Appearance: /
• Density: 0.8341 (estimate)
• Refractive Index: 1.4770 (estimate)
• CAS DataBase Reference: dicyclobutylidene(CAS DataBase Reference)
• NIST Chemistry Reference: dicyclobutylidene(6708-14-1)
• EPA Substance Registry System: dicyclobutylidene(6708-14-1)

Safety Data

• Hazardous Substances Data: 6708-14-1(Hazardous Substances Data)

Usage

Hazard

Moderately toxic by ingestion and inhala- tion.

Safety Profile

Moderately toxic by ingestion andinhalation routes. When heated to decomposition it emitsacrid smoke and irritating vapors.

Upstream product

• 1191-95-3 cyclobutanone 
• 7333-63-3 4-bromobutylphosphonium bromide 
• 4893-00-9 dispiro[3.1.3.1]decane-5,10-dione 
• 1120-56-5 methylidenecyclobutane 
• 137072-99-2 4-methylenespiro<2.3>hexane 
• 53213-06-2 cyclobutyltriphenylphosphonium ylide 
• 1528-21-8 ethylidenecyclobutane 
• 51175-05-4 1'-Hydroxy-bicyclobutyl-1-carboxylic acid 
• 37676-86-1 5-thia-10,11-diaza-dispiro[3.1.3.2]undec-10-ene 

Downstream Products

• 4893-00-9 dispiro[3.1.3.1]decane-5,10-dione 
• 108451-19-0 trispiro[3.0.3.0.3.1]tridecan-13-one 
• 135763-48-3 9-Aza-dispiro[3.0.3.1]nonane 
• 1120-56-5 methylidenecyclobutane 
• 1207344-10-2 4-cyclobutylidenespiro[2,3]hexane 
• 108572-90-3 4-(4-nitrobenzenesulfonimido)-dispiro<2.1.3.3>undecane 
• 160511-38-6 5-(4-nitrobenzenesulfonimido)-spiro<3.5>octane 
• 84646-37-7 4,4,5,5-Di(trimethylene)-2-phenyl-3-phenylcarbamoylisoxazolidine 
• 10468-36-7 Spiro<3.4>octan-5-on 
• 1191-95-3 cyclobutanone 

Relevant articles and documents

Synthesis of Spiro[2.2]pentanes and Spiro[2.3]hexanes Employing the Me3Al/CH2I2 Reagent

Substituted alkylidenecyclopropanes reacted with 5 equivalents each of Me3Al and CH2I2 at room temperature in hexane to give 1-mono- and 1,1-disubstituted spiro[2.2]pentanes in high yields. Surprisingly, the same reaction

Synthesis of energetic compounds via the metathesis reaction of 4-methylenespiro[2,3]hexane

Transformations of methylenespiro[2,3]hexane (MSH) on a heterogeneous rhenium-alumina metathesis (disproportionation) catalyst were studied. It was found that, owing to a significant difference in the stability of carbenic complexes of methylene and disubstituted carbenes, MSH undergoes isomerization to 4-methylspiro[2,3]hex-4-ene followed by their cometathesis yielding bis(spiro[2,3]hexylidene-4). The feasibility of selective cometathesis of MSH and dicyclobutylidene on the rhenium-alumina catalyst resulting in the formation of 4-cyclobutylidenespiro[2,3]hexane was shown.