80657-68-7

Upstream product

• 2819-48-9 1,2-bis(methylene)cyclohexane 
• 80625-08-7 9-(carboethoxy)tricyclo<4.2.1.0^1,6>nonanes 
• 10563-11-8 bicyclo<4.2.0>oct-1(6)-ene 
• 80625-11-2 Tricyclo[4.2.1.0^1,6]nonane-9-carbaldehyde 
• 1576-35-8 toluene-4-sulfonic acid hydrazide 
• 80625-10-1 9-(hydroxymethyl)tricyclo<4.2.1.0^1,6>nonanes 

Relevant academic research and scientific papers

Synthesis and Thermal Isomerization of Tricyclo1,6>dec-7-ene (Propell-7-ene) to 3,8-Dimethylenecyclooctene

Tricyclo1,6>dec-7-ene (propell-7-ene; 1) has been prepared from cis-4-cyclohexene-1,2-dicarboxylic anhydride through a conventioanal 12-step reaction sequence by way of bicyclooct-1(6)-ene and tricyclo1,6>nonane-9-carboxaldehyde tosylhydrazone.It is isomerized thermally to 3,8-dimethylenecyclooctene (2) with activation parameters Ea = 35.8 +/- 1.3 kcal mol-1 and log A = 12.6 +/- 0.6.Two possible explanations for the isomerization are considered: reaction by way of a short-lived bicyclodeca-1(8),6-diene intermediate or direct cleavage of C(1)-C(6) and C(9)-C(10) simultaneously.