126950-02-5

Basic information

• Product Name: (1α,2β,5β,6α)-9,9-Dimethyl-7,8-diazatricyclo<4.3.0.0^2,5>nona-3,7-dien
• Synonyms: (1α,2β,5β,6α)-9,9-Dimethyl-7,8-diazatricyclo<4.3.0.0^2,5>nona-3,7-dien
• CAS NO: 126950-02-5
• Molecular Weight: 148.208
• Mol File: 126950-02-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: (1α,2β,5β,6α)-9,9-Dimethyl-7,8-diazatricyclo<4.3.0.0^2,5>nona-3,7-dien(CAS DataBase Reference)
• NIST Chemistry Reference: (1α,2β,5β,6α)-9,9-Dimethyl-7,8-diazatricyclo<4.3.0.0^2,5>nona-3,7-dien(126950-02-5)
• EPA Substance Registry System: (1α,2β,5β,6α)-9,9-Dimethyl-7,8-diazatricyclo<4.3.0.0^2,5>nona-3,7-dien(126950-02-5)

Safety Data

• Hazardous Substances Data: 126950-02-5(Hazardous Substances Data)

Upstream product

• 5649-95-6 Dewar-benzol 
• 2684-60-8 2-diazopropane 

Downstream Products

• 98-82-8 Isopropylbenzene 
• 7557-11-1 7,7-dimethyl-1,3,5-cycloheptatriene 

Relevant articles and documents

Mechanism of the Cyclopropane "Walk" Rearrangement: Syntheses and Properties of 2-Diazopropane-Arene Adducts; a Regiospecific N2 Elimination

The synthesis and the thermal and photochemical behavior of 2-diazopropane adducts of toluene 1a, m-xylene 1b,c, and Dewar benzene 2a,b are reported.At 60 deg C the thermal N2 elimination of the specifically deuterated compound 1c proceeds regiospecifically leading to 1,7,7-trimethyl-5-(trideuteriomethyl)-1,3,5-cycloheptatriene (12c), whereas the photolysis of 1c sensitized by benzophenone yields both regioisomeric cycloheptatrienes 12c and 13c in a 51:49 ratio.This finding excludes the symmetrical diradical 3c as an intermediate in the thermal N2 elimination of 1c and suggests a novel pericyclic process for it.The formation of both regioisomeric cycloheptatrienes 25b and 25c in a 74:26 ratio in the thermolysis of the diazopropane-tetradeuterio Dewar benzene adduct 2b indicates that in this case a multi-step N2 elimination passing through the diradical intermediate 3e competes with the concerted process.According to force-field calculations the course of the N2 elimination in 1a-e might be controlled by the conformational equilibrium A B.