CH122246A - Process for the preparation of dibromo-Bz 1, Bz 1'-benzanthronyl disulfide. - Google Patents
Process for the preparation of dibromo-Bz 1, Bz 1'-benzanthronyl disulfide.Info
- Publication number
- CH122246A CH122246A CH122246DA CH122246A CH 122246 A CH122246 A CH 122246A CH 122246D A CH122246D A CH 122246DA CH 122246 A CH122246 A CH 122246A
- Authority
- CH
- Switzerland
- Prior art keywords
- benzanthronyl
- disulfide
- preparation
- dibromo
- dibromine
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 4
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Chemical compound BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 2
- 230000031709 bromination Effects 0.000 description 2
- 238000005893 bromination reaction Methods 0.000 description 2
- 229910052794 bromium Inorganic materials 0.000 description 2
- XTHPWXDJESJLNJ-UHFFFAOYSA-N chlorosulfonic acid Substances OS(Cl)(=O)=O XTHPWXDJESJLNJ-UHFFFAOYSA-N 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- KEQGZUUPPQEDPF-UHFFFAOYSA-N 1,3-dichloro-5,5-dimethylimidazolidine-2,4-dione Chemical compound CC1(C)N(Cl)C(=O)N(Cl)C1=O KEQGZUUPPQEDPF-UHFFFAOYSA-N 0.000 description 1
- AEZNOEUPSYVAKE-UHFFFAOYSA-N 1-[(7-oxobenzo[a]phenalen-1-yl)disulfanyl]benzo[b]phenalen-7-one Chemical class C1(=CC=C2C=CC=C3C(=O)C4=CC=CC=C4C1=C23)SSC2=CC=C3C=CC=C1C(=O)C4=CC=CC=C4C2=C31 AEZNOEUPSYVAKE-UHFFFAOYSA-N 0.000 description 1
- MXSGCWXTCZXMIU-UHFFFAOYSA-N 1-sulfanylbenzo[b]phenalen-7-one Chemical class C1(=CC=C2C=CC=C3C(=O)C4=CC=CC=C4C1=C23)S MXSGCWXTCZXMIU-UHFFFAOYSA-N 0.000 description 1
- BWGNESOTFCXPMA-UHFFFAOYSA-N Dihydrogen disulfide Chemical compound SS BWGNESOTFCXPMA-UHFFFAOYSA-N 0.000 description 1
- 125000001246 bromo group Chemical class Br* 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Darstellung von Dibrom-Bz 1, Bz 1'-benzanthronyldisnlfid. Gegenstand dieses Zusatzpatentes ist ein Verfahren zur Darstellung von Dibrom-Bz 1, Bz 1'-benzanthronyldisulfid durch Behandeln von Bz 1, Bz 1'-benzanthronyldisulfid mit Bromierungsmitteln. Das Dibrom-Bz 1, Bz '.'- benzanthronyldisulfid kann als Zwischenpro dukt zur Herstellung von Farbstoffen dienen.
<I>Beispiel:</I> 100 Gewichtsteile Bz 1, Bz 1'-benzacithro- nyldisulfid werden in 1000 Gewichtsteile Chlorsulfonsäure bei - 5 C eingetragen und mit 31 Gewichtsteilen Brom verrührt, bis alles Brom verbraucht ist. Das Brornierungs- produkt wird wie üblich isoliert. Es ist ein dunkelgelbes Pulver, das sich in konzentrierter Schwefelsäure mit weinroter, in dünner Schicht mit blauer Farbe löst.
Man kann auch vom Bz 1-Benzanthronyl- merkaptanen ausgehend Bromierungsprodukte der Benzanthronyldisulfide erhalten. Bromiert man zum Beispiel in Chlorsulfonsäure als Lösungsmittel, so tritt erst Oxydation zum Disulfid ein und man erhält beim Arbeiten mit den oben angegebenen Mengen Dibrom- Bz 1, Bz 1'-benzanthronyldisulfid.
Process for the preparation of dibromo-Bz 1, Bz 1'-benzanthronyldisilfide. The subject of this additional patent is a process for the preparation of dibromo-Bz 1, Bz 1'-benzanthronyl disulfide by treating Bz 1, Bz 1'-benzanthronyl disulfide with brominating agents. The dibromo-Bz 1, Bz '.'- benzanthronyl disulfide can serve as an intermediate product for the production of dyes.
<I> Example: </I> 100 parts by weight of Bz 1, Bz 1'-benzacithronyl disulfide are introduced into 1000 parts by weight of chlorosulfonic acid at -5 ° C. and stirred with 31 parts by weight of bromine until all the bromine has been consumed. The bromination product is isolated as usual. It is a dark yellow powder that dissolves in concentrated sulfuric acid with a wine-red color, and in a thin layer with a blue color.
One can also obtain bromination products of benzanthronyl disulfides starting from Bz 1-benzanthronyl mercaptans. If, for example, one bromines in chlorosulphonic acid as solvent, then only oxidation to disulphide occurs and one obtains when working with the abovementioned amounts of dibromo-Bz 1, Bz 1'-benzanthronyl disulphide.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE122246X | 1925-03-27 | ||
| CH120520T | 1926-03-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH122246A true CH122246A (en) | 1927-09-01 |
Family
ID=25709466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH122246D CH122246A (en) | 1925-03-27 | 1926-03-26 | Process for the preparation of dibromo-Bz 1, Bz 1'-benzanthronyl disulfide. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH122246A (en) |
-
1926
- 1926-03-26 CH CH122246D patent/CH122246A/en unknown
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