Process for the production of endo-endo hexacyclic dimer of norb

Details Process for the production of endo-endo hexacyclic dimer of norb Process for the production of endo-endo hexacyclic dimer of norb

1977-02-10

1978-06-13

Lechert, Jr., Stephen J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260666PY, 60219, C07C 100

Patent

active

040949168

ABSTRACT:
Process involves the continuous production of endo-endo stereoisomer of the hexacyclic dimer of norbornadiene using a three component catalystic system of diethylaluminum chloride, ferric acetylacetonate and triphenylphosphino. Temperature range of reaction is about 100.degree.-200.degree. F and residence time is about 1-10 hours. Process further involves taking a product stream, along with any catalyst and other materials, and treating it to deactivate the catalyst; then separating the desired endo-endo dimer by various means at a temperature below about 500.degree. F to avoid decomposition of iron salts. Unreacted norbornadiene is recycled.

REFERENCES:
patent: 3703361 (1972-11-01), Konecky

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