GB1338851A - Method of preparing fluoran compounds - Google Patents
Method of preparing fluoran compoundsInfo
- Publication number
- GB1338851A GB1338851A GB3813372A GB3813372A GB1338851A GB 1338851 A GB1338851 A GB 1338851A GB 3813372 A GB3813372 A GB 3813372A GB 3813372 A GB3813372 A GB 3813372A GB 1338851 A GB1338851 A GB 1338851A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fluoran compounds
- phenol derivative
- benzophenone
- preparing
- aug
- Prior art date
- 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.)
- Expired
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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B11/00—Diaryl- or thriarylmethane dyes
- C09B11/04—Diaryl- or thriarylmethane dyes derived from triarylmethanes, i.e. central C-atom is substituted by amino, cyano, alkyl
- C09B11/10—Amino derivatives of triarylmethanes
- C09B11/24—Phthaleins containing amino groups ; Phthalanes; Fluoranes; Phthalides; Rhodamine dyes; Phthaleins having heterocyclic aryl rings; Lactone or lactame forms of triarylmethane dyes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Heat Sensitive Colour Forming Recording (AREA)
Abstract
1338851 Preparing fluoran compounds NATIONAL CASH REGISTER CO 16 Aug 1972 [30 Aug 1971] 38133/72 Heading C4P Fluoran compounds of the general formulµ wherein each R is H or alkyl, R 1 is alkyl and n is 0 or an integer from 1-5 are prepared by reacting a benzophenone compound of general formula with a phenol derivative of the general formulµ in presence of concentrated sulphuric acid at 10-30‹ C. in a mole ratio of benzophenone: phenol derivative greater than 1 : 1, adjusting the reaction mixture to an alkaline pH and then continuing the reaction at 80-100‹ C. The preferred benzophenone : phenol derivative ratio range is 1À1 : 1 to 2 : 1. The product is isolated by water dilution, filtration water and then hexane washing and finally drying.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17629671A | 1971-08-30 | 1971-08-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1338851A true GB1338851A (en) | 1973-11-28 |
Family
ID=22643782
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3813372A Expired GB1338851A (en) | 1971-08-30 | 1972-08-16 | Method of preparing fluoran compounds |
Country Status (15)
Country | Link |
---|---|
JP (1) | JPS5638619B2 (en) |
AT (1) | AT315825B (en) |
AU (1) | AU454455B2 (en) |
BE (1) | BE788073A (en) |
CA (1) | CA968361A (en) |
CH (1) | CH596214A5 (en) |
DE (1) | DE2242005C2 (en) |
DK (1) | DK143654C (en) |
ES (1) | ES406170A1 (en) |
FR (1) | FR2150854B1 (en) |
GB (1) | GB1338851A (en) |
IT (1) | IT964084B (en) |
NL (1) | NL175190C (en) |
SE (1) | SE386678B (en) |
ZA (1) | ZA725407B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4364999A (en) * | 1980-09-17 | 1982-12-21 | Hodogaya Chemical Co., Ltd. | Heat sensitive record sheet |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5119411B1 (en) * | 1971-03-25 | 1976-06-17 | ||
JPS5120330B2 (en) * | 1972-07-15 | 1976-06-24 | ||
JPS6025275B2 (en) * | 1977-06-13 | 1985-06-17 | 山田化学工業株式会社 | heat sensitive recording material |
JPS55123651A (en) * | 1979-03-19 | 1980-09-24 | Mitsubishi Paper Mills Ltd | Preparation of fluoran compound |
US4414399A (en) | 1979-05-14 | 1983-11-08 | Sterling Drug Inc. | 5/6 Carboxyphthalides |
US4515971A (en) * | 1980-03-31 | 1985-05-07 | Hilton-Davis Chemical Co. | 5'/6'-Carboxyfluorans and derivatives thereof |
EP0176161A1 (en) * | 1984-08-24 | 1986-04-02 | Taoka Chemical Co., Ltd | Novel fluoran compounds and production and use thereof |
JPH0662864B2 (en) * | 1989-12-25 | 1994-08-17 | 山本化成株式会社 | Process for producing 3-dibutylamino-6-methyl-7-anilinofluorane |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IE34290B1 (en) * | 1969-05-22 | 1975-04-02 | Fuji Photo Film Co Ltd | Process for preparation of fluoran compounds |
-
1972
- 1972-06-16 CA CA144,963A patent/CA968361A/en not_active Expired
- 1972-08-07 ZA ZA725407A patent/ZA725407B/en unknown
- 1972-08-10 AU AU45455/72A patent/AU454455B2/en not_active Expired
- 1972-08-16 GB GB3813372A patent/GB1338851A/en not_active Expired
- 1972-08-18 IT IT28301/72A patent/IT964084B/en active
- 1972-08-18 JP JP8266872A patent/JPS5638619B2/ja not_active Expired
- 1972-08-22 ES ES406170A patent/ES406170A1/en not_active Expired
- 1972-08-25 FR FR727230272A patent/FR2150854B1/fr not_active Expired
- 1972-08-25 NL NLAANVRAGE7211650,A patent/NL175190C/en not_active IP Right Cessation
- 1972-08-26 DE DE2242005A patent/DE2242005C2/en not_active Expired
- 1972-08-28 SE SE7211109A patent/SE386678B/en unknown
- 1972-08-28 BE BE788073A patent/BE788073A/en not_active IP Right Cessation
- 1972-08-29 DK DK426272A patent/DK143654C/en not_active IP Right Cessation
- 1972-08-30 AT AT745172A patent/AT315825B/en not_active IP Right Cessation
- 1972-08-30 CH CH1277672A patent/CH596214A5/xx not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4364999A (en) * | 1980-09-17 | 1982-12-21 | Hodogaya Chemical Co., Ltd. | Heat sensitive record sheet |
Also Published As
Publication number | Publication date |
---|---|
DE2242005A1 (en) | 1973-03-15 |
DE2242005C2 (en) | 1984-05-10 |
NL175190B (en) | 1984-05-01 |
CH596214A5 (en) | 1978-03-15 |
FR2150854B1 (en) | 1979-02-09 |
NL7211650A (en) | 1973-03-02 |
NL175190C (en) | 1984-10-01 |
ES406170A1 (en) | 1975-09-16 |
SE386678B (en) | 1976-08-16 |
JPS4834932A (en) | 1973-05-23 |
AT315825B (en) | 1974-06-10 |
DK143654C (en) | 1982-03-08 |
AU4545572A (en) | 1974-02-14 |
AU454455B2 (en) | 1974-10-31 |
DK143654B (en) | 1981-09-21 |
ZA725407B (en) | 1973-04-25 |
BE788073A (en) | 1972-12-18 |
IT964084B (en) | 1974-01-21 |
JPS5638619B2 (en) | 1981-09-08 |
FR2150854A1 (en) | 1973-04-13 |
CA968361A (en) | 1975-05-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
CSNS | Application of which complete specification have been accepted and published, but patent is not sealed | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |