Claims
- 1. A cycloadduct of the formula ##STR17##
- 2. A process for preparing a cycloadduct of the formula ##STR18## which comprises reacting 2,2'-(2,5-furandiyldimethylidyne)bis-propanedinitrile with 8-methoxyheptafulvene in the absence of air to form a tetrahydrozulene, and heating a solution of the tetrahydroazulene in a boiling solvent to eliminate methanol.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3718917 |
Jun 1987 |
DEX |
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Parent Case Info
This is a continuation of application Ser. No. 445,092 filed Dec. 5, 1989 and now U.S. Pat. No. 5,091,538, which is a continuation-in-part of 07/195,754 filed May 19, 1988, now abandoned.
Non-Patent Literature Citations (1)
Entry |
Chemical Abstracts, vol. 112 (No. 27) Abst. No. 54688-e Feb. 12, 1990. |
Divisions (1)
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Number |
Date |
Country |
Parent |
445092 |
Dec 1989 |
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
195754 |
May 1988 |
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