NL6605421A - - Google Patents
Info
- Publication number
- NL6605421A NL6605421A NL6605421A NL6605421A NL6605421A NL 6605421 A NL6605421 A NL 6605421A NL 6605421 A NL6605421 A NL 6605421A NL 6605421 A NL6605421 A NL 6605421A NL 6605421 A NL6605421 A NL 6605421A
- Authority
- NL
- Netherlands
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/26—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D307/30—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D307/32—Oxygen atoms
- C07D307/33—Oxygen atoms in position 2, the oxygen atom being in its keto or unsubstituted enol form
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2603/00—Systems containing at least three condensed rings
- C07C2603/02—Ortho- or ortho- and peri-condensed systems
- C07C2603/04—Ortho- or ortho- and peri-condensed systems containing three rings
- C07C2603/22—Ortho- or ortho- and peri-condensed systems containing three rings containing only six-membered rings
- C07C2603/26—Phenanthrenes; Hydrogenated phenanthrenes
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH570365A CH468997A (en) | 1965-04-23 | 1965-04-23 | Process for the resolution of a racemic mixture into the optical antipodes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NL6605421A true NL6605421A (en) | 1966-10-24 |
| NL153540B NL153540B (en) | 1977-06-15 |
Family
ID=4297967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL666605421A NL153540B (en) | 1965-04-23 | 1966-04-22 | PROCESS FOR THE PREPARATION OF D - (-) - PANTOLACTONE. |
Country Status (9)
| Country | Link |
|---|---|
| BE (1) | BE679805A (en) |
| BR (1) | BR6678826D0 (en) |
| CH (1) | CH468997A (en) |
| DE (1) | DE1568755A1 (en) |
| DK (1) | DK116726B (en) |
| ES (1) | ES325859A1 (en) |
| GB (1) | GB1083076A (en) |
| NL (1) | NL153540B (en) |
| YU (1) | YU77366A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2809179A1 (en) * | 1978-03-03 | 1979-09-13 | Basf Ag | METHOD OF EXTRACTION OF PANTOLACTONE FROM ITS AQUATIC SOLUTIONS |
| US4225506A (en) * | 1978-05-30 | 1980-09-30 | Hoffmann-La Roche Inc. | Process for manufacturing a diketone |
| CN111499602B (en) * | 2020-05-14 | 2022-06-07 | 安徽泰格生物科技有限公司 | Method for extracting D-pantolactone from DL-pantolactone split liquid by calcium salt method |
| CN112457181B (en) * | 2020-12-11 | 2023-08-29 | 黄冈美丰化工科技有限公司 | Synthesis method of D-calcium pantothenate |
-
1965
- 1965-04-23 CH CH570365A patent/CH468997A/en unknown
-
1966
- 1966-03-26 DE DE19661568755 patent/DE1568755A1/en not_active Withdrawn
- 1966-04-19 BR BR178826/66A patent/BR6678826D0/en unknown
- 1966-04-21 BE BE679805D patent/BE679805A/xx unknown
- 1966-04-22 DK DK207866AA patent/DK116726B/en unknown
- 1966-04-22 ES ES0325859A patent/ES325859A1/en not_active Expired
- 1966-04-22 NL NL666605421A patent/NL153540B/en unknown
- 1966-04-23 YU YU00773/66A patent/YU77366A/en unknown
- 1966-12-22 GB GB17634/66A patent/GB1083076A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1568755A1 (en) | 1970-03-05 |
| BE679805A (en) | 1966-10-21 |
| CH468997A (en) | 1969-02-28 |
| ES325859A1 (en) | 1967-07-01 |
| BR6678826D0 (en) | 1973-09-18 |
| YU77366A (en) | 1978-02-28 |
| GB1083076A (en) | 1967-09-13 |
| DK116726B (en) | 1970-02-09 |
| NL153540B (en) | 1977-06-15 |