PL40814B1 - - Google Patents
Download PDFInfo
- Publication number
- PL40814B1 PL40814B1 PL40814A PL4081456A PL40814B1 PL 40814 B1 PL40814 B1 PL 40814B1 PL 40814 A PL40814 A PL 40814A PL 4081456 A PL4081456 A PL 4081456A PL 40814 B1 PL40814 B1 PL 40814B1
- Authority
- PL
- Poland
- Prior art keywords
- acetyl
- butyrrolactone
- chloro
- water
- reaction
- Prior art date
Links
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 3
- 238000005660 chlorination reaction Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 claims description 2
- 235000016936 Dendrocalamus strictus Nutrition 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims 1
- 239000011541 reaction mixture Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 description 2
- OMQHDIHZSDEIFH-UHFFFAOYSA-N 3-Acetyldihydro-2(3H)-furanone Chemical compound CC(=O)C1CCOC1=O OMQHDIHZSDEIFH-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229930188620 butyrolactone Natural products 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- YEJRWHAVMIAJKC-UHFFFAOYSA-N gamma-butyrolactone Natural products O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 1
- 239000012044 organic layer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 230000004584 weight gain Effects 0.000 description 1
- 235000019786 weight gain Nutrition 0.000 description 1
Description
¦£ Opublikowano dnia 21 kwietnia 1JHI8 r. lwu POLSKIEJ RZECZYPOSPOLITEJ LUDOWEJ OPIS PATENTOWY Nr 40814 KI. 12 q, 24 Instytut Farmaceutyczny*) Warszawa, Polska Sposób otrzymywania a -acetylo- a -chloro-y-butyrolaktonu Patent trwa od dnia 13 grudnia 1956 r. a -acetylo- a -chloro- y-butyrolakton jest pól¬ produktem do syntezy witaminy Bi. Substancje te otrzymac mozna dotychczas dwoma zasadni¬ czymi sposobami: a) przez chlorowanie chlorem gazowym mie¬ szaniny a -acetylo- y butyrolaktonu, wody i kredy* Wprowadza sie dokladnie okreslo¬ na ilosc chloru, kontrolujac przyrost masy mieszaniny a-acetylo- y -butyrolaktonu, wo¬ dy i kredy. Po zakonczeniu chlorowania nadmiar kredy rozpuszcza, sie stezonym kwasem solnym. Warstwe organiczna a -acetylo- a -chloro- y -butyrolaktonu od¬ dziela sie i oczyszcza przez destylacje pod zmniejszonym cisnieniem. b) przez dzialanie na a -acetylo- y -butyrolak¬ ton w temperaturze okolo 0
Claims (1)
1. Zastrzezenie patentowe Sposób otrzymywania a -acetylo-a-chloro- y- -butyrolaktonu, znamienny tym, ze a -acetylo-y -butyrolakton chloruje sie chlorem gazowym bez uzycia wody i czynnika alkalicznego, wia¬ zacego powstajacy w reakcji chlorowodór, przy czym przebieg procesu chlorowania i jego za¬ konczenie kontroluje sie przez pomiar gestosci mieszaniny reakcyjnej. Instytut Farmaceutyczny Zastepca: Kolegium Rzeczników Patentowych CWD. Bema —, tam. Tte/Wa Pt.Dr.Akc.Min.sa7/ttnakL \9*k91 we. druk. s»t. 9/7t gr. Bs PL
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL40814B1 true PL40814B1 (pl) | 1957-12-15 |
Family
ID=
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| IT7950929A0 (it) | Materiale adatto per la produzionedi indumenti da usare in ambienti esposti all'acqua come mute da sommozzatori indumenti per sci acquatico pesca e simili | |
| PL40814B1 (pl) | ||
| GT198062782A (es) | Procedimiento para la produccion de 4-amino-1,2,4-triazin-5-onas | |
| ES488572A1 (es) | Procedimiento de preparacion de anilinas sustituidas en po- sicion meta por cloro | |
| JPS523014A (en) | Preparation of chlorinated aldehyde | |
| JPS55149231A (en) | Manufacture of matha position chlorine substituted anilines | |
| Romanushkina et al. | Titanium as a material for equipment in the production of calcium hypochlorite bleaching powder | |
| US118212A (en) | Powders | |
| JPS5625979A (en) | Electrolysis for sea water | |
| US317206A (en) | Battery-fluid | |
| SU451659A1 (ru) | Грунтоцемент | |
| DZHEMUKHADZE | Tanning Substances and Qualities of Raw Material of Tea | |
| US869610A (en) | Carbonic-acid bath. | |
| USD233368S (en) | Tripod | |
| GB994652A (en) | Artificial pyrolusite and its use in batteries | |
| JPS5214778A (en) | Improved process for preparing 2-(4-chlorophenyl)-3-alkyl-4- metathiaz anone-1,1-dioxides | |
| SU436036A1 (pl) | ||
| JOTUNI | A CHEMICAL APPROACH TO THE PROBLEM OF ENVIRONMENTAL CONTAMINATION | |
| JPS5262241A (en) | Preparation of chlorosulfonylbenzoyl chlorides | |
| JPS5256196A (en) | Process for polyurethane | |
| GB685294A (en) | Improved process for the chlorination of benzene and benzene derivatives | |
| JPS52111497A (en) | Calcium hypochlorite composition | |
| JPS5275691A (en) | Production of high quality active carbon | |
| Martin-Garin et al. | Mass Spectrometry Measurements of Activities in Liquid Silver--Germanium Alloys: Critical Assessment of the Thermodynamics of the Silver--Germanium System and Short-Distance Order | |
| GB305931A (pl) |