Claims
- 1. A process for producing at least one mono-oxomethyl substituted polyhydrodimethanonaphthalene derivative comprising the step of admixing at a pressure in the range of from about 150 psig up to about 500 psig and at a temperature in the range of from about 150.degree. C. up to about 250.degree. C. in the presence of or in the absence of an inert solvent, an acrolein derivative with a bicyclopentadiene derivative according to the reaction: ##STR161## wherein R.sub.1, R.sub.1 ', R.sub.1 ", R.sub.1 "', R.sub.1 "", R.sub.3, R.sub.5, R.sub.5 ', R.sub.5 ", R.sub.5 "', R.sub.5 "" and R.sub.6 represent hydrogen or methyl; with the provisos:
- (i) at least four of R.sub.1, R.sub.1 ', R.sub.1 ", R.sub.1 "' and R.sub.1 "" represents hydrogen; and
- (ii) at least four of R.sub.5, R.sub.5 ', R.sub.5 ", R.sub.5 "', and R.sub.5 "" represent hydrogen,
- the ratio of bicyclopentadiene derivative:acrolein derivative varying from about 0.5:1 up to about 1:0.5 and the concentration of reactants in the reaction mass varying from about 100 grams per liter up to about 500 grams per liter.
- 2. The process of claim 1 comprising the additional step of reacting the resulting product with hydrogen at a pressure of 500-1500 psig and at a temperature of 100.degree.-150.degree. C.
- 3. The process of claim 1 comprising the additional step of reacting the resulting product with hydrogen in the presence of a Raney nickel catalyst or a palladium catalyst at a pressure of 50-200 psig and at a temperature of from about 10.degree. C. up to about 140.degree. C.
- 4. The process of claim 1 comprising the additional step of reacting the resulting product with an alkali metal borohydride or with lithium aluminum hydride in the presence of an inert solvent at a temperature in the range of from about 20.degree. C. up to reflux, the mole ratio of alkali metal borohydride:aldehyde reactant or lithium aluminum hydride:aldehyde reactant varying from about 0.2:1 up to about 1:1.
Parent Case Info
This is a divisional of application Ser. No. 354,387, filed Mar. 2, 1982, now U.S. Pat. No. 4,391,284.
US Referenced Citations (3)
Non-Patent Literature Citations (3)
Entry |
Chemical Abstracts, vol. 60 #4026q, 1964, Gelin et al., "Reactions Between Cyclopentadiene and Propynol". |
Chemical Abstracts, vol. 84 #43,466h, 1975, Katanosaka, "Alicydic Compounds". |
The Chemistry of the Carbonyl Groups, Patai, pp. 512-513, 1966, John Wily & Sons, New York, NY. |
Divisions (1)
|
Number |
Date |
Country |
Parent |
354387 |
Mar 1982 |
|