PL9359B1 - The method of obtaining alkylisopropylphenols or their hydrogenation products. - Google Patents
The method of obtaining alkylisopropylphenols or their hydrogenation products. Download PDFInfo
- Publication number
- PL9359B1 PL9359B1 PL9359A PL935927A PL9359B1 PL 9359 B1 PL9359 B1 PL 9359B1 PL 9359 A PL9359 A PL 9359A PL 935927 A PL935927 A PL 935927A PL 9359 B1 PL9359 B1 PL 9359B1
- Authority
- PL
- Poland
- Prior art keywords
- alkylisopropylphenols
- obtaining
- hydrogenation products
- hydrogen
- treated
- Prior art date
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- 238000005984 hydrogenation reaction Methods 0.000 title claims 2
- 238000000034 method Methods 0.000 title claims 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 239000001257 hydrogen Substances 0.000 claims description 6
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 5
- 239000003054 catalyst Substances 0.000 claims description 2
- 150000002989 phenols Chemical class 0.000 claims description 2
- MGSRCZKZVOBKFT-UHFFFAOYSA-N thymol Chemical compound CC(C)C1=CC=C(C)C=C1O MGSRCZKZVOBKFT-UHFFFAOYSA-N 0.000 description 4
- 229940041616 menthol Drugs 0.000 description 3
- NOOLISFMXDJSKH-UTLUCORTSA-N (+)-Neomenthol Chemical compound CC(C)[C@@H]1CC[C@@H](C)C[C@@H]1O NOOLISFMXDJSKH-UTLUCORTSA-N 0.000 description 2
- WZKJXHQLLOLDCW-UHFFFAOYSA-N 4-methyl-2-propan-2-ylcyclohexan-1-ol Chemical compound CC(C)C1CC(C)CCC1O WZKJXHQLLOLDCW-UHFFFAOYSA-N 0.000 description 2
- NOOLISFMXDJSKH-UHFFFAOYSA-N DL-menthol Natural products CC(C)C1CCC(C)CC1O NOOLISFMXDJSKH-UHFFFAOYSA-N 0.000 description 2
- 239000005844 Thymol Substances 0.000 description 2
- 229960000790 thymol Drugs 0.000 description 2
- IJALWSVNUBBQRA-UHFFFAOYSA-N 4-Isopropyl-3-methylphenol Chemical compound CC(C)C1=CC=C(O)C=C1C IJALWSVNUBBQRA-UHFFFAOYSA-N 0.000 description 1
- DSTPUJAJSXTJHM-UHFFFAOYSA-N 4-methyl-2-propan-2-ylphenol Chemical compound CC(C)C1=CC(C)=CC=C1O DSTPUJAJSXTJHM-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
Description
Alkyloizopropylenofenole nienasycone w lancuchu bocznym, które mozna otrzy¬ mac z latwoscia wedlug patentu polskiego Nr 8918, mozna jak to wykryto, zapomoca traktowania wodorem w obecnosci odpo¬ wiednich katalizatorów z latwoscia prze¬ prowadzic w fenole o nasyconym bocznym lancuchu.Nasycanie wodorem mozna prowa¬ dzic nie zmieniajac warunków pracy do chwili przylaczenia 8 atomów wodoru. W ten sposób otrzymuje sie z dobra wydaj¬ noscia i o cennych wlasnosciach tymol wzglednie jego izomery i mentol wzgled¬ nie jego izomery.Przyklad I, 3-metylo-6-izopropylenofe- nol traktuje sie w obecnosci odpowiednie¬ go katalizatora w temperaturze 140°— 160°C wodorem ewentualnie pod cisnie¬ niem dopóty, dopóki nie zostana przyla¬ czone 2 atomy wodoru. Otrzymuje sie tymol.Przyklad II. 4-metylo-6-izopropylenofe- nol traktuje sie jak w przykladzie I wodo¬ rem dopóty, dopóki nie zostana przylaczo¬ ne 2 atomy wodoru. Otrzymuje sie 4-mety- lo-6-izopropylenofenol (p-tymol).Przyklad III. 3-metylo-6-izopropyleno- fenol traktuje sie jak w przykladzie I, najkorzystniej w 'temperaturze wyzszej i pod wyzszem cisnieniem wodorem dopó¬ ty, dopóki nie zostana przylaczone 8 ato¬ mów wodoru. Otrzymuje sie mentol.Przyklad IV. 4 - metylo-6-izopropylo- fenol traktuje sie jaJk w przykladzie III wodorem dopóty, dopóki nie zostana przy-• laczone 8 atomów wodoru. Otrzymuje sie 4-jtnetylo-6rizopropylocykloheksanol (1) (p- mentol); '* PL PLAlkylisopropylene phenols unsaturated in the side chain, which can be readily obtained according to Polish Patent No. 8918, can, as it has been discovered, be easily treated with hydrogen in the presence of suitable catalysts easily in phenol with a saturated side chain. Today, without changing the operating conditions until the attachment of 8 hydrogen atoms. In this way, thymol or its isomers and menthol or its isomers are obtained with good yield and valuable properties. 160 ° C. with hydrogen, optionally under pressure, until 2 hydrogen atoms are attached. You get thymol. Example II. 4-methyl-6-isopropylenephenol is treated as in Example 1 with hydrogen until 2 hydrogen atoms are attached. There is obtained 4-methyl-6-isopropylenepol (p-thymol). Example III. 3-methyl-6-isopropylene phenol is treated as in Example 1, most preferably at a higher temperature and a higher hydrogen pressure until 8 hydrogen atoms are attached. Menthol is obtained. Example IV. 4-methyl-6-isopropylphenol is treated as in Example III with hydrogen until 8 hydrogen atoms have been attached. This gives 4-methyl-6-isopropylcyclohexanol (1) (p-menthol); '* PL PL
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL9359B1 true PL9359B1 (en) | 1928-10-31 |
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