SE0101989D0 - Enrichment for the preparation of 3-isochromanone - Google Patents
Enrichment for the preparation of 3-isochromanoneInfo
- Publication number
- SE0101989D0 SE0101989D0 SE0101989A SE0101989A SE0101989D0 SE 0101989 D0 SE0101989 D0 SE 0101989D0 SE 0101989 A SE0101989 A SE 0101989A SE 0101989 A SE0101989 A SE 0101989A SE 0101989 D0 SE0101989 D0 SE 0101989D0
- Authority
- SE
- Sweden
- Prior art keywords
- isochromanone
- halogen
- enrichment
- preparation
- formula
- Prior art date
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
- C07D311/76—Benzo[c]pyrans
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention relates to a method for producing possibly substituted 3-isochromanone of the formula (I), according to which 2-halogen methyl phenyl acetonitriles of the formula (II) are reacted with a halogen acid. In said formulas R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are identical or different and represent H, halogen, OH or OR<SP>5</SP>, R<SP>5</SP> representing a C<SB>1</SB>-C<SB>4</SB>-alkyl, or R<SP>1</SP> and R<SP>2</SP> or R<SP>2</SP> and R<SP>3</SP> or R<SP>3</SP> and R<SP>4</SP> together form a C<SB>3</SB>- or C<SB>4</SB>-alkyl rest or a C<SB>3</SB>- or C<SB>4</SB>-alkylene rest and X is chlorine or bromine.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1998158738 DE19858738C2 (en) | 1998-12-18 | 1998-12-18 | Process for the preparation of 3-isochromanone |
PCT/EP1999/009544 WO2000037454A1 (en) | 1998-12-18 | 1999-12-07 | Method for producing 3-isochromanone |
Publications (3)
Publication Number | Publication Date |
---|---|
SE0101989D0 true SE0101989D0 (en) | 2001-06-06 |
SE0101989L SE0101989L (en) | 2001-06-06 |
SE526012C2 SE526012C2 (en) | 2005-06-14 |
Family
ID=7891750
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE0101989A SE526012C2 (en) | 1998-12-18 | 2001-06-06 | Process for the preparation of 3-isochromanone |
Country Status (5)
Country | Link |
---|---|
AU (1) | AU3035800A (en) |
DE (2) | DE19858738C2 (en) |
GB (1) | GB2361475B (en) |
SE (1) | SE526012C2 (en) |
WO (1) | WO2000037454A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1116720A4 (en) * | 1998-09-21 | 2002-09-25 | Showa Denko Kk | Processes for the preparation of isochromanones and intermediates for the preparation thereof |
CN104387375A (en) * | 2014-09-24 | 2015-03-04 | 中国药科大学 | Hydrogen sulfide donor type isochromanone derivatives, preparation method and uses thereof |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1116720A4 (en) * | 1998-09-21 | 2002-09-25 | Showa Denko Kk | Processes for the preparation of isochromanones and intermediates for the preparation thereof |
-
1998
- 1998-12-18 DE DE1998158738 patent/DE19858738C2/en not_active Expired - Fee Related
-
1999
- 1999-12-07 AU AU30358/00A patent/AU3035800A/en not_active Abandoned
- 1999-12-07 GB GB0115218A patent/GB2361475B/en not_active Expired - Fee Related
- 1999-12-07 WO PCT/EP1999/009544 patent/WO2000037454A1/en active Application Filing
- 1999-12-07 DE DE19982749T patent/DE19982749D2/en not_active Expired - Fee Related
-
2001
- 2001-06-06 SE SE0101989A patent/SE526012C2/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
GB2361475B (en) | 2004-04-07 |
DE19858738A1 (en) | 2000-06-21 |
DE19858738C2 (en) | 2001-03-22 |
GB0115218D0 (en) | 2001-08-15 |
SE0101989L (en) | 2001-06-06 |
AU3035800A (en) | 2000-07-12 |
DE19982749D2 (en) | 2002-01-24 |
GB2361475A (en) | 2001-10-24 |
WO2000037454A1 (en) | 2000-06-29 |
SE526012C2 (en) | 2005-06-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |