72610-72-1

Basic information

• Product Name: C₁₈H₁₇Br
• CAS NO: 72610-72-1
• Molecular Weight: 313.237
• Mol File: 72610-72-1.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: C₁₈H₁₇Br(CAS DataBase Reference)
• NIST Chemistry Reference: C₁₈H₁₇Br(72610-72-1)
• EPA Substance Registry System: C₁₈H₁₇Br(72610-72-1)

Safety Data

• Hazardous Substances Data: 72610-72-1(Hazardous Substances Data)

Upstream product

• 2039-86-3 3-bromostyrene 
• 72610-67-4 C₁₇H₁₇N₂O₂S^(1-)*Na⁽¹⁺⁾ 

Relevant articles and documents

Benzocyclobutenylidene-Cycloadditions, Reactivity, and Multiplicity

EHT and CNDO/2 calculations on benzocyclobutenylidene (6) are described.Flash pyrolysis of the tosylhydrazone salt 7 affords benzocyclobutene and o-xylene in low yield, along with the formal syn and anti carbene dimers 13 and 14.Condensed-phase reactions were achieved by photolysis of the salt 15.Benzocyclobutenylidene (6) gave rise to the formal carbene dimers 17 and 18.Insertion of carbene 6 into the carbon-hydrogen bonds of 2,3-dimethylbutane produced the benzocyclobutenes 20 and 21 (insertion ratio tertiary:primary = 9:1).Cycloaddition of 6 to olefins gave only spirohexene derivatives 22.Multiplicity studies of 6 with cis or trans olefins indicated that 6 undergoes cycloaddition in a stereospecific manner.Competition experiments using dienes and monoolefins implicate an equilibrium between singlet and triplet 6.Further competition experiments with styrene/para-substituted styrene pairs demonstrated that 6 reacts faster with electron-poor styrenes.Possible explanations for this apparent anomaly are discussed.