Claims
- 1. A process for preparing at least one secondary alcohol comprising the steps of:
- (a) reacting alpha pinene or beta pinene with a mixture of carbon monoxide and hydrogen in the presence of a hydroformylation catalyst in order to produce at least one compound defined according to the structure: ##STR231## or the compound having the structure: ##STR232## wherein in the mixture one of the dashed lines at the 7-5 or 7-4 positions represents a carbon-carbon single bond and the other of the dashed lines at the 7-5 or 7-4 position represents no bond; wherein one of R.sub.3 or R.sub.4 represents hydrogen and the other of R.sub.3 or R.sub.4 represents hydrogen or methyl; wherein m=0 or 1 and n=0 or 1 with the sum of m+n being equal to 1; wherein A and B each represents methylene defined according to the structure: ##STR233## wherein p=0 or 1 and q=0 or 1 with the provisos that: (i) when the dashed line at the 7-5 position is a carbon-carbon single bond, then R.sub.3 and R.sub.4 are both hydrogen, m is 0, n is 1 and q is 1;
- (ii) when one of R.sub.3 or R.sub.4 is methyl and the other of R.sub.3 or R.sub.4 is hydrogen, then p and q are both 0;
- (iii) when R.sub.3 is methyl, then R.sub.4 is hydrogen and the dashed line at the 7-5 position or the dashed line at the 7-4 position is carbon-carbon single bond; and m is 0; n is 1 and q is 0;
- (iv) when R.sub.4 is methyl and R.sub.3 is hydrogen, then n is 0 and m is 1 and p is 0 and one of the dashed lines at the 7-5 position or the 7-4 position is a carbon-carbon single bond,
- (b) reacting the compound having the structure: ##STR234## or the compound having the structure: ##STR235## with methyl ethyl ketone in the presence of a basic catalyst; and (c) reacting the resulting product with a reducing agent selected from the group consisting of alkali metal borohydrides and lithium aluminum hydride.
- 2. The process of claim 1 wherein the oxo reaction catalyst is dicobalt octacarbonyl and the oxo reaction is carried out at a pressure of 4000 psig and a temperature in the range of 200.degree.-220.degree. C.
Parent Case Info
This is a divisional of application Ser. No. 582,795, filed 2/23/84, now U.S. Pat. No. 4,506,104 which, in turn, is a divisional of application for U.S. Letters Patent, Ser. No. 496,651 filed 5/20/83, now U.S. Pat. No. 4,510,340, which, in turn, is a divisional of U.S. Letters Patent, Ser. No. 396,485 filed 7/8/82, now U.S. Pat. No. 4,424,378 issued 1/3/84; which, in turn, is a continuation-in-part of application for U.S. Letters Patent, Ser. No. 362,237 filed 3/26/82, now U.S. Pat. No. 4,428,387 issued 1/31/84.
US Referenced Citations (6)
Foreign Referenced Citations (2)
Number |
Date |
Country |
0052999 |
Jun 1982 |
EPX |
0094456 |
Nov 1983 |
EPX |
Divisions (2)
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Number |
Date |
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Parent |
582795 |
Feb 1984 |
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Parent |
496651 |
May 1983 |
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Continuation in Parts (2)
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Date |
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396485 |
Jul 1982 |
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Parent |
362237 |
Mar 1982 |
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