GB557097A - Process for making dihydroxy halogenated diphenyl methanes - Google Patents

Process for making dihydroxy halogenated diphenyl methanes

Info

Publication number
GB557097A
GB557097A GB1005241A GB1005241A GB557097A GB 557097 A GB557097 A GB 557097A GB 1005241 A GB1005241 A GB 1005241A GB 1005241 A GB1005241 A GB 1005241A GB 557097 A GB557097 A GB 557097A
Authority
GB
United Kingdom
Prior art keywords
dihydroxy
dibromophenol
bromination
dibromo
salts
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
Application number
GB1005241A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BURTON T BUSH Inc
Original Assignee
BURTON T BUSH Inc
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 BURTON T BUSH Inc filed Critical BURTON T BUSH Inc
Priority to GB1005241A priority Critical patent/GB557097A/en
Publication of GB557097A publication Critical patent/GB557097A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
    • C07C37/11—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms
    • C07C37/20—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms using aldehydes or ketones
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
    • C07C37/11—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms
    • C07C37/115—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms using acetals
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
    • C07C37/64—Preparation of O-metal compounds with O-metal group bound to a carbon atom belonging to a six-membered aromatic ring
    • C07C37/66—Preparation of O-metal compounds with O-metal group bound to a carbon atom belonging to a six-membered aromatic ring by conversion of hydroxy groups to O-metal groups

Abstract

557,097. Halogenated hydroxydiphenyl methanes. JACKSON, L. MELLERSH-. (Bush, Inc., B. T.). Aug. 7, 1941, No. 10052. [Class 2 (iii)] 2, 21-Dihydroxy-3, 5, 6, 3<SP>1</SP>, 5<SP>1</SP>, 6<SP>1</SP>- hexahalo- and 2, 2<SP>1</SP>-dihydroxy-3, 4, 5, 6, 31, 4<SP>1</SP>, 51, 6<SP>1</SP>-octahalo-diphenylmethanes are obtained by reaction of 2 mols. of 2, 4, 5-trihalo- and 2, 3, 4, 5- tetrahalo-phenol with 1 mol. of formaldehyde in presence of sulphuric acid at 0-20‹ C. and in presence of a water-miscible aliphatic alcohol. The reaction products may be extracted by diluting with ice or cold water and treating with a mixture of liquids, such as toluene and isopropylether. The products may be converted to alkali or alkaline earth metal salts containing one atom of metal in the molecule. The products and their salts may be used as antiseptic, bactericidal, bacteriostatic, fungicidal and preservative agents, in solid, liquid or emulsion form, alone or mixed with other substances. Examples are given of the preparation of 2, 2<SP>1</SP>-dihydroxy-3, 5, 6, 3<SP>1</SP>, 5<SP>1</SP>, 6<SP>1</SP>-hexachloro-, 2, 21-dihydroxy-3, 4, 5, 6, 31, 41, 5<SP>1</SP>, 61-octachloro-, 2, 2<SP>1</SP>-dihydroxy-3, 5, 6, 3<SP>1</SP> 5<SP>1</SP>, 6<SP>1</SP>- hexabromo-, and 2, 2<SP>1</SP>-dihydroxy-3, 6, 3<SP>1</SP>, 6<SP>1</SP>- tetrachloro-5, 5<SP>1</SP>-dibromo-diphenylmethane, and their sodium and barium salts. The potassium, lithium, calcium, magnesium and strontium salts may also be prepared. Iodine and fluorine containing compounds may also be prepared. 2, 5-Dibromophenol is made by bromination of m-bromophenol. 2, 4, 5-Tribromophenol is made by bromination of 2, 5-dibromophenol. 2, 5-Dichloro-4-bromophenol is made by bromination of 2, 5-dichlorophenol. 2, 4-Dichloro-5-iodophenol is made by chlorinating m-iodophenol. 2, 4-Dibromo-5-fluorophenol is made by brominating m-fluorophenol. 2, 3, 4, 5- Tetrachlorophenol is made by diazotization of tetrachloroaniline. 2, 3, 4, 5- Tetrabromophenol is made by decarboxylation of tetrabromosalicylic acid. 2, 5-Dibromo-4-chlorophenol is made by chlorinating 2, 5-dibromophenol with sulphuryl chloride in ethylene dichloride with cooling.
GB1005241A 1941-08-07 1941-08-07 Process for making dihydroxy halogenated diphenyl methanes Expired GB557097A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1005241A GB557097A (en) 1941-08-07 1941-08-07 Process for making dihydroxy halogenated diphenyl methanes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1005241A GB557097A (en) 1941-08-07 1941-08-07 Process for making dihydroxy halogenated diphenyl methanes

Publications (1)

Publication Number Publication Date
GB557097A true GB557097A (en) 1943-11-04

Family

ID=9960562

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1005241A Expired GB557097A (en) 1941-08-07 1941-08-07 Process for making dihydroxy halogenated diphenyl methanes

Country Status (1)

Country Link
GB (1) GB557097A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2730554A (en) * 1951-12-29 1956-01-10 Geigy Ag J R Germicidal diphenyl methane compounds
GB2174090A (en) * 1985-04-16 1986-10-29 Nouvel Colette Improvement in the preparation and use of substituted bisphenhols

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2730554A (en) * 1951-12-29 1956-01-10 Geigy Ag J R Germicidal diphenyl methane compounds
GB2174090A (en) * 1985-04-16 1986-10-29 Nouvel Colette Improvement in the preparation and use of substituted bisphenhols
GB2174090B (en) * 1985-04-16 1989-07-05 Nouvel Colette Improvement in the preparation and use of substituted bisphenols

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