NL153540B - PROCESS FOR THE PREPARATION OF D - (-) - PANTOLACTONE. - Google Patents

PROCESS FOR THE PREPARATION OF D - (-) - PANTOLACTONE.

Info

Publication number
NL153540B
NL153540B NL666605421A NL6605421A NL153540B NL 153540 B NL153540 B NL 153540B NL 666605421 A NL666605421 A NL 666605421A NL 6605421 A NL6605421 A NL 6605421A NL 153540 B NL153540 B NL 153540B
Authority
NL
Netherlands
Prior art keywords
pantolactone
preparation
Prior art date
Application number
NL666605421A
Other languages
Dutch (nl)
Other versions
NL6605421A (en
Original Assignee
Hoffmann La Roche
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hoffmann La Roche filed Critical Hoffmann La Roche
Publication of NL6605421A publication Critical patent/NL6605421A/xx
Publication of NL153540B publication Critical patent/NL153540B/en

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Epoxy Compounds (AREA)
NL666605421A 1965-04-23 1966-04-22 PROCESS FOR THE PREPARATION OF D - (-) - PANTOLACTONE. NL153540B (en)

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 NL6605421A (en) 1966-10-24
NL153540B true 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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
YU77366A (en) 1978-02-28
NL6605421A (en) 1966-10-24
CH468997A (en) 1969-02-28
GB1083076A (en) 1967-09-13
BR6678826D0 (en) 1973-09-18
DE1568755A1 (en) 1970-03-05
DK116726B (en) 1970-02-09
ES325859A1 (en) 1967-07-01
BE679805A (en) 1966-10-21

Similar Documents

Publication Publication Date Title
NL143908B (en) PROCESS FOR THE CONTINUOUS PREPARATION OF ISOCYANATES.
NL158521B (en) PROCESS FOR THE PREPARATION OF POLYPENTENAMERS WITH CONSIDERING TRANSSTRUCTURE.
NL159098B (en) PROCESS FOR THE PREPARATION OF PROPEENOXIDE.
NL141549B (en) PROCESS FOR THE PREPARATION OF SUBSTITUTED POLYPHENYLENE OXIDES.
NL145557B (en) PROCESS FOR THE PREPARATION OF NUCLEOSIDES.
NL150442B (en) PROCESS FOR THE PREPARATION OF 5-BENZYLPYRIMIDINE DERIVATIVES.
NL145221B (en) PROCESS FOR THE PREPARATION OF THERMOLABIAL URETHANES.
NL149197B (en) PROCESS FOR THE PREPARATION OF PAINT SOLUTIONS.
NL148350B (en) PROCESS FOR THE PREPARATION OF DISAZOPIGMENTS.
NL161738C (en) CONTINUOUS PROCESS FOR THE PREPARATION OF NITROAL CANOLS.
NL148915B (en) PROCESS FOR THE PREPARATION OF POLY-EPSILON-CAPROLACTAM.
NL148618B (en) PROCESS FOR THE PREPARATION OF ENTCOPOLYMERS.
NL138963B (en) PROCESS FOR THE PREPARATION OF NITROCELLULOSE.
NL139531B (en) PROCESS FOR THE PREPARATION OF AMINOISOXAZOLES.
NL157585B (en) PROCESS FOR THE PREPARATION OF ALKYLAROMATOES.
NL157052B (en) PROCESS FOR THE PREPARATION OF GERMICIC, NON-IONOGIC, IODIUM-CONTAINING CLEANERS.
NL157894B (en) PROCESS FOR THE PREPARATION OF AZINS.
NL143210B (en) PROCESS FOR THE PREPARATION OF HEXAFLUORPROPANOL-2.
NL153540B (en) PROCESS FOR THE PREPARATION OF D - (-) - PANTOLACTONE.
NL145211B (en) PROCESS FOR THE PREPARATION OF 11-HYDROXYSTEROIDS.
NL158822B (en) PROCESS FOR THE PREPARATION OF TRANS-POLYPENTENAMEER.
NL155006B (en) PROCESS FOR THE PREPARATION OF BETA-IONON.
NL148633B (en) PROCEDURE FOR THE PREPARATION OF THERMO-HARDING COATING MIXTURES.
NL149498B (en) PROCESS FOR THE PREPARATION OF VERY PURE 1,3,5-TRIOXAN.
NL141888B (en) PROCESS FOR THE PREPARATION OF HYDROGENING PRODUCTS OF DIE-COPOLYMERS.