JPS4951280A - - Google Patents
Info
- Publication number
- JPS4951280A JPS4951280A JP48065732A JP6573273A JPS4951280A JP S4951280 A JPS4951280 A JP S4951280A JP 48065732 A JP48065732 A JP 48065732A JP 6573273 A JP6573273 A JP 6573273A JP S4951280 A JPS4951280 A JP S4951280A
- Authority
- JP
- Japan
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
- C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
- C07D311/58—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Pyrane Compounds (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00272799A US3825562A (en) | 1972-07-18 | 1972-07-18 | Process for recovering 2,2,4-trimethyl-4-(4-hydroxyphenyl)chroman |
| US272799 | 2002-10-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4951280A true JPS4951280A (ja) | 1974-05-18 |
| JPS593478B2 JPS593478B2 (ja) | 1984-01-24 |
Family
ID=23041334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP48065732A Expired JPS593478B2 (ja) | 1972-07-18 | 1973-06-11 | 高純度２，２，４−トリメチル−４−（４−ビドロキシフエニル）クロマンの回収方法 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3825562A (ja) |
| JP (1) | JPS593478B2 (ja) |
| DE (1) | DE2335854C2 (ja) |
| FR (1) | FR2193015B1 (ja) |
| GB (1) | GB1385603A (ja) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0134094B1 (en) * | 1983-08-15 | 1987-05-27 | AMP INCORPORATED (a New Jersey corporation) | An improved compliant section for circuit board contact elements |
| JPS6139467A (ja) * | 1984-07-31 | 1986-02-25 | ヒロセ電機株式会社 | 電気接触子 |
| US4749799A (en) * | 1986-06-02 | 1988-06-07 | General Electric Company | Preparation of chromans |
| US5773633A (en) * | 1995-08-01 | 1998-06-30 | General Electric Company | Process for crystallizing chroman-I from an impure mixture |
| DE19629988A1 (de) * | 1996-07-25 | 1998-01-29 | Basf Ag | Verfahren zur Polymerisation von Vinylchlorid |
-
1972
- 1972-07-18 US US00272799A patent/US3825562A/en not_active Expired - Lifetime
-
1973
- 1973-05-22 GB GB2437573A patent/GB1385603A/en not_active Expired
- 1973-06-11 JP JP48065732A patent/JPS593478B2/ja not_active Expired
- 1973-07-12 FR FR7325645A patent/FR2193015B1/fr not_active Expired
- 1973-07-14 DE DE2335854A patent/DE2335854C2/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2193015B1 (ja) | 1977-02-18 |
| JPS593478B2 (ja) | 1984-01-24 |
| DE2335854A1 (de) | 1974-01-31 |
| US3825562A (en) | 1974-07-23 |
| GB1385603A (en) | 1975-02-26 |
| DE2335854C2 (de) | 1982-06-16 |
| FR2193015A1 (ja) | 1974-02-15 |