JPS5545642A - Preparation of 2-hydroxy-4-methyltetrahydropyran - Google Patents
Preparation of 2-hydroxy-4-methyltetrahydropyranInfo
- Publication number
- JPS5545642A JPS5545642A JP11890878A JP11890878A JPS5545642A JP S5545642 A JPS5545642 A JP S5545642A JP 11890878 A JP11890878 A JP 11890878A JP 11890878 A JP11890878 A JP 11890878A JP S5545642 A JPS5545642 A JP S5545642A
- Authority
- JP
- Japan
- Prior art keywords
- rhodium
- methyl
- compound
- reaction
- hydroformylating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Pyrane Compounds (AREA)
Abstract
PURPOSE: To prepare the title compound, by hydroformylating 2-methyl-1-buten-4- ol with H2/CO mixed gas in the presence of rhodium catalyst and an organic phosphorus compound, and distilling the reaction product at a specific temperature.
CONSTITUTION: The title compound is prepared by hydroformylating 2-methyl-1- buten-4-ol in the presence of (A) a rhodium catalyst (e.g. rhodium oxide) and (B) at least 1mol, based on 1g-atom of the rhodium, of a compound I, II, or III (R1,2,5 are hydrocarbons; R3 is H or lower alkyl; R4 is H or hydrocarbon), and distilling the reaction mixture at 75W160°C to separate the unreacted raw material from the reaction product.
EFFECT: The objective compound can be prepared in high selectivity. The catalyst keeps its activity after the distillation, and can be recycled to the reaction system. The reaction proceeds under relatively low pressure.
USE: Precursor 3-methyl-1,5-pentanediol which is raw material of polyester, etc.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11890878A JPS604832B2 (en) | 1978-09-26 | 1978-09-26 | Method for producing 2-hydroxy-4-methyltetrahydropyran |
FR7914186A FR2428021A1 (en) | 1978-06-05 | 1979-06-01 | HYDROFORMYLATION OF OLEFINIC COMPOUNDS |
US06/045,301 US4238419A (en) | 1978-06-05 | 1979-06-04 | Hydroformylation of olefinic compounds |
CA329,027A CA1115293A (en) | 1978-06-05 | 1979-06-04 | Hydroformylation of olefinic compounds |
GB7919318A GB2026473B (en) | 1978-06-05 | 1979-06-04 | Hydroformylation |
DE2922757A DE2922757C2 (en) | 1978-06-05 | 1979-06-05 | Process for the hydroformylation of olefinic compounds |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11890878A JPS604832B2 (en) | 1978-09-26 | 1978-09-26 | Method for producing 2-hydroxy-4-methyltetrahydropyran |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5545642A true JPS5545642A (en) | 1980-03-31 |
JPS604832B2 JPS604832B2 (en) | 1985-02-06 |
Family
ID=14748136
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11890878A Expired JPS604832B2 (en) | 1978-06-05 | 1978-09-26 | Method for producing 2-hydroxy-4-methyltetrahydropyran |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS604832B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS612419U (en) * | 1984-06-08 | 1986-01-09 | 若木ヘヤ−株式会社 | wig |
JPH0546911U (en) * | 1991-04-09 | 1993-06-22 | 節子 伊藤 | wig |
-
1978
- 1978-09-26 JP JP11890878A patent/JPS604832B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS612419U (en) * | 1984-06-08 | 1986-01-09 | 若木ヘヤ−株式会社 | wig |
JPH0546911U (en) * | 1991-04-09 | 1993-06-22 | 節子 伊藤 | wig |
Also Published As
Publication number | Publication date |
---|---|
JPS604832B2 (en) | 1985-02-06 |
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