NL158774C - - Google Patents

Info

Publication number: NL158774C
Authority: NL; Netherlands

Application number

NL7202520A

Other versions

NL7202520A (en

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.)

1971-02-27

Filing date

1972-02-25

Publication date

1978-12-15

1971-02-27 Priority claimed from DE19712109456 external-priority patent/DE2109456C3/en

1972-02-02 Priority claimed from DE19722204771 external-priority patent/DE2204771C3/en

1972-02-25 Application filed filed Critical

1972-08-29 Publication of NL7202520A publication Critical patent/NL7202520A/xx

1978-12-15 Application granted granted Critical

1978-12-15 Publication of NL158774C publication Critical patent/NL158774C/xx

1978-12-15 Publication of NL158774B publication Critical patent/NL158774B/en

Classifications

- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C35/00—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a ring other than a six-membered aromatic ring
- C07C35/02—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a ring other than a six-membered aromatic ring monocyclic
- C07C35/08—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a ring other than a six-membered aromatic ring monocyclic containing a six-membered rings
- C07C35/12—Menthol

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

NL7202520A 1971-02-27 1972-02-25 PROCESS FOR SEPARATING MIXTURES FROM D AND 1 ISOMERS OF MENTHOL, NEOMENTHOL AND ISOMENTHOL INTO THE OPTICALLY ACTIVE D AND 1 ISOMERS. NL158774B (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE19712109456 DE2109456C3 (en)		1971-02-27	Process for the separation of optically pure d- and I-menthol
DE19722204771 DE2204771C3 (en)	1972-02-02	1972-02-02	Process for the separation of optically pure d- and l-neo- or isomenthol

Publications (3)

Publication Number	Publication Date
NL7202520A NL7202520A (en)	1972-08-29
NL158774C true NL158774C (en)	1978-12-15
NL158774B NL158774B (en)	1978-12-15

Family

ID=25760737

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL7202520A NL158774B (en)	1971-02-27	1972-02-25	PROCESS FOR SEPARATING MIXTURES FROM D AND 1 ISOMERS OF MENTHOL, NEOMENTHOL AND ISOMENTHOL INTO THE OPTICALLY ACTIVE D AND 1 ISOMERS.

Country Status (10)

Country	Link
JP (1)	JPS523375B1 (en)
BE (1)	BE779888A (en)
CA (1)	CA976986A (en)
CH (1)	CH560660A5 (en)
FR (1)	FR2126445B1 (en)
GB (1)	GB1369714A (en)
IT (1)	IT951071B (en)
NL (1)	NL158774B (en)
PL (1)	PL85126B1 (en)
SU (1)	SU432710A3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2280681B (en) *	1993-08-06	1998-03-11	Merck Patent Gmbh	Thermochromic media
CN111991834B (en) *	2020-09-08	2021-11-16	安徽银丰药业股份有限公司	Crystallization barrel is used in menthol processing
CN115057905B (en) *	2022-07-13	2023-09-08	中国科学院上海药物研究所	Eutectic crystal of L-menthol and cholesterol, preparation method and application thereof

1972
- 1972-02-22 CH CH251072A patent/CH560660A5/xx not_active IP Right Cessation
- 1972-02-24 SU SU1752092A patent/SU432710A3/en active
- 1972-02-25 NL NL7202520A patent/NL158774B/en not_active IP Right Cessation
- 1972-02-25 FR FR7206572A patent/FR2126445B1/fr not_active Expired
- 1972-02-25 GB GB885772A patent/GB1369714A/en not_active Expired
- 1972-02-25 IT IT4856072A patent/IT951071B/en active
- 1972-02-25 CA CA135,554A patent/CA976986A/en not_active Expired
- 1972-02-25 BE BE779888A patent/BE779888A/en not_active IP Right Cessation
- 1972-02-26 JP JP1938272A patent/JPS523375B1/ja active Pending
- 1972-02-26 PL PL15370472A patent/PL85126B1/pl unknown

Also Published As

Publication number	Publication date
JPS523375B1 (en)	1977-01-27
GB1369714A (en)	1974-10-09
IT951071B (en)	1973-06-30
NL158774B (en)	1978-12-15
FR2126445A1 (en)	1972-10-06
NL7202520A (en)	1972-08-29
CA976986A (en)	1975-10-28
SU432710A3 (en)	1974-06-15
BE779888A (en)	1972-08-25
CH560660A5 (en)	1975-04-15
FR2126445B1 (en)	1976-07-23
PL85126B1 (en)	1976-04-30

Publication	Publication Date	Title
FR2126445B1 (en)	1976-07-23
AU465356B2 (en)	1975-09-10
AU2691671A (en)	1972-09-28
AU2684071A (en)	1972-09-28
AU2742671A (en)	1972-10-12
AU2894671A (en)	1972-11-23
AU2941471A (en)	1972-11-30
AU2952271A (en)	1972-12-07
AU3005371A (en)	1972-12-21
AU2880771A (en)	1972-11-16
AU2837671A (en)	1972-11-09
AU2875571A (en)	1972-11-16
AU2684171A (en)	1971-07-15
AU2415871A (en)	1972-07-13
AU2724971A (en)	1972-10-05
AU2726271A (en)	1972-10-05
AU2740271A (en)	1972-10-12
AU2755871A (en)	1972-10-19
AU2836771A (en)	1972-11-09
AU2854371A (en)	1972-11-09
AU2885171A (en)	1972-11-16
AU3038671A (en)	1973-01-04
AU3025871A (en)	1973-01-04
AU2907471A (en)	1972-11-23
AU2963771A (en)	1972-12-07

Legal Events

Date	Code	Title	Description
1992-02-24	NL80	Abbreviated name of patent owner mentioned of already nullified patent	Owner name: HAARMANN
1992-03-16	V4	Lapsed because of reaching the maxim lifetime of a patent