GB1000685A - New dithianes and the preparation thereof - Google Patents
New dithianes and the preparation thereofInfo
- Publication number
- GB1000685A GB1000685A GB29601/63A GB2960163A GB1000685A GB 1000685 A GB1000685 A GB 1000685A GB 29601/63 A GB29601/63 A GB 29601/63A GB 2960163 A GB2960163 A GB 2960163A GB 1000685 A GB1000685 A GB 1000685A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- dithianes
- dihydroxy
- alkylated
- formula
- 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
- C07D339/00—Heterocyclic compounds containing rings having two sulfur atoms as the only ring hetero atoms
- C07D339/08—Six-membered rings
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention comprises 2,5-dihydroxy-1,4-dithianes which are mono-alkylated or dialkylated in the 3- and/or 6-positions, and their esters with carboxylic acids. The new compounds have the formula <FORM:1000685/C2/1> in which R1, R2, R3 and R4 are alkyl radicals or not more than 3 of them may be hydrogen atoms, and Ac is an acyl group or a hydrogen atom. Preferably the alkyl radicals and acyl groups contain 1-32 carbon atoms. When Ac is an acyl group it may be derived, for example, from formic acid, acetic acid, propionic acid, butyric acid, valeric acid, oxalic acid, malic acid, maleic acid, succinic acid, adipic acid, benzoic acid, benzylic acid, phthalic acid and salicylic acid. The 2,5-dihydroxy-1,4-dithianes alkylated in the 3- and/or 6-position are prepared by the action of a metal hydrosulphide on an a -halo-aldehyde, preferably in a solvent. The dihydroxy compound may then be esterified by reacting it with an acid in the presence of a water acceptor, or preferably an acid anhydride in an organic solvent. The aldehydes used may have the formula <FORM:1000685/C2/2> or <FORM:1000685/C2/3> in which R1 and R2 are alkyl groups and X is a halogen. Preferably the acid sulphides are those of alkali metals. The process is preferably carried out at a temperature between 15 DEG and 35 DEG C. If desired, a mixture of aldehydes may be used.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR905283A FR1336860A (en) | 1962-07-27 | 1962-07-27 | New dithianas and their preparation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1000685A true GB1000685A (en) | 1965-08-11 |
Family
ID=8784060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29601/63A Expired GB1000685A (en) | 1962-07-27 | 1963-07-25 | New dithianes and the preparation thereof |
Country Status (5)
| Country | Link |
|---|---|
| CH (1) | CH419176A (en) |
| FR (1) | FR1336860A (en) |
| GB (1) | GB1000685A (en) |
| LU (1) | LU44118A1 (en) |
| OA (1) | OA01215A (en) |
-
1962
- 1962-07-27 FR FR905283A patent/FR1336860A/en not_active Expired
-
1963
- 1963-07-23 LU LU44118D patent/LU44118A1/xx unknown
- 1963-07-25 GB GB29601/63A patent/GB1000685A/en not_active Expired
- 1963-07-25 CH CH927963A patent/CH419176A/en unknown
-
1964
- 1964-12-31 OA OA51397A patent/OA01215A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH419176A (en) | 1966-08-31 |
| FR1336860A (en) | 1963-09-06 |
| LU44118A1 (en) | 1964-01-23 |
| OA01215A (en) | 1969-01-25 |
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