NL7207201A - - Google Patents
Info
- Publication number
- NL7207201A NL7207201A NL7207201A NL7207201A NL7207201A NL 7207201 A NL7207201 A NL 7207201A NL 7207201 A NL7207201 A NL 7207201A NL 7207201 A NL7207201 A NL 7207201A NL 7207201 A NL7207201 A NL 7207201A
- Authority
- NL
- Netherlands
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D309/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
- C07D309/34—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
- C07D309/36—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with oxygen atoms directly attached to ring carbon atoms
- C07D309/40—Oxygen atoms attached in positions 3 and 4, e.g. maltol
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3598271A JPS5121991B1 (xx) | 1971-05-26 | 1971-05-26 | |
| JP10433271A JPS515385B2 (xx) | 1971-12-22 | 1971-12-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7207201A true NL7207201A (xx) | 1972-11-28 |
Family
ID=26374998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7207201A NL7207201A (xx) | 1971-05-26 | 1972-05-26 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3832357A (xx) |
| CA (1) | CA959853A (xx) |
| CH (1) | CH553178A (xx) |
| DE (1) | DE2225446A1 (xx) |
| FR (1) | FR2139174B1 (xx) |
| GB (1) | GB1399491A (xx) |
| IT (1) | IT1048924B (xx) |
| NL (1) | NL7207201A (xx) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1095921A (en) * | 1976-08-02 | 1981-02-17 | Thomas M. Brennan | Preparation of gamma-pyrones |
| US4126624A (en) * | 1976-11-12 | 1978-11-21 | Pfizer Inc. | Preparation of gamma-pyrones from 3-substituted furans |
| DK178289A (da) * | 1988-04-27 | 1989-10-28 | Givaudan & Cie Sa | Fremgangsmaade til fremstilling af gamma-pyroner |
| CN104387355B (zh) * | 2014-09-27 | 2016-06-08 | 安徽金禾实业股份有限公司 | 一种乙基麦芽酚结晶母液回收方法 |
| CN108299362B (zh) * | 2018-01-13 | 2021-07-09 | 安徽金禾实业股份有限公司 | 一种分离麦芽酚粗品中杂质的方法 |
| CN112574156A (zh) * | 2020-12-11 | 2021-03-30 | 安徽金禾实业股份有限公司 | 一种乙基麦芽酚升华后粗品反萃取提纯方法 |
-
1972
- 1972-05-24 US US00256538A patent/US3832357A/en not_active Expired - Lifetime
- 1972-05-25 CA CA143,032A patent/CA959853A/en not_active Expired
- 1972-05-25 DE DE19722225446 patent/DE2225446A1/de not_active Withdrawn
- 1972-05-25 GB GB2457872A patent/GB1399491A/en not_active Expired
- 1972-05-26 IT IT24956/72A patent/IT1048924B/it active
- 1972-05-26 NL NL7207201A patent/NL7207201A/xx not_active Application Discontinuation
- 1972-05-26 FR FR7219002A patent/FR2139174B1/fr not_active Expired
- 1972-05-26 CH CH781572A patent/CH553178A/fr not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CH553178A (fr) | 1974-08-30 |
| FR2139174A1 (xx) | 1973-01-05 |
| DE2225446A1 (de) | 1972-12-07 |
| FR2139174B1 (xx) | 1977-12-23 |
| IT1048924B (it) | 1980-12-20 |
| US3832357A (en) | 1974-08-27 |
| CA959853A (en) | 1974-12-24 |
| GB1399491A (en) | 1975-07-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BB | A search report has been drawn up | ||
| BC | A request for examination has been filed | ||
| BV | The patent application has lapsed |