JPS5231384B1 - - Google Patents
Info
- Publication number
- JPS5231384B1 JPS5231384B1 JP45075292A JP7529270A JPS5231384B1 JP S5231384 B1 JPS5231384 B1 JP S5231384B1 JP 45075292 A JP45075292 A JP 45075292A JP 7529270 A JP7529270 A JP 7529270A JP S5231384 B1 JPS5231384 B1 JP S5231384B1
- Authority
- JP
- Japan
- Legal status (The legal status 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 status listed.)
- Pending
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
- C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D307/87—Benzo [c] furans; Hydrogenated benzo [c] furans
- C07D307/88—Benzo [c] furans; Hydrogenated benzo [c] furans with one oxygen atom directly attached in position 1 or 3
- C07D307/885—3,3-Diphenylphthalides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Furan Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP45075292A JPS5231384B1 (ja) | 1970-08-29 | 1970-08-29 | |
| US05/175,716 US3987062A (en) | 1970-08-29 | 1971-08-27 | Process of preparing 3,3-bis[4-dimethylaminophenyl]6-dimethylaminophthalide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP45075292A JPS5231384B1 (ja) | 1970-08-29 | 1970-08-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5231384B1 true JPS5231384B1 (ja) | 1977-08-15 |
Family
ID=13572001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP45075292A Pending JPS5231384B1 (ja) | 1970-08-29 | 1970-08-29 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3987062A (ja) |
| JP (1) | JPS5231384B1 (ja) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS525746A (en) * | 1975-07-03 | 1977-01-17 | Kanzaki Paper Mfg Co Ltd | Novel process for preparation of triarymethane derivatives |
| US4076728A (en) * | 1977-03-17 | 1978-02-28 | American Cyanamid Company | Process for manufacturing crystal violet lactone |
| DE2835450C3 (de) * | 1978-08-12 | 1981-04-16 | Basf Ag, 6700 Ludwigshafen | Verfahren zur Herstellung von 3,3-Bis-(4-dimethylaminophenyl)-6-dimethylaminophthalid (Kristallviolettlacton) |
| JPS5919548B2 (ja) * | 1979-02-14 | 1984-05-07 | 保土谷化学工業株式会社 | ３，３−ビス−（４−ジメチルアミノフエニル）−６−ジメチルアミノフタリドの改良製造法 |
| CN103323162A (zh) * | 2013-05-30 | 2013-09-25 | 震宇（芜湖）实业有限公司 | 塑料焊件受力平衡性的检测方法及该方法中的压力感应纸 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2742483A (en) * | 1954-06-14 | 1956-04-17 | Sterling Drug Inc | Process for obtaining crystal violet lactone |
| US3185709A (en) * | 1963-11-21 | 1965-05-25 | Sterling Drug Inc | Process for obtaining crystal violet lactone |
| US3642514A (en) * | 1970-04-27 | 1972-02-15 | Nisso Kako Co Ltd | Pressure-sensitive copying sheet utilizing stabilized crystal violet lactone, method of making and method of making composition |
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1970
- 1970-08-29 JP JP45075292A patent/JPS5231384B1/ja active Pending
-
1971
- 1971-08-27 US US05/175,716 patent/US3987062A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US3987062A (en) | 1976-10-19 |