BR8107183A - Processo para a preparacao de poliois com pelo menos um anel de oxaciclopentano - Google Patents
Processo para a preparacao de poliois com pelo menos um anel de oxaciclopentanoInfo
- Publication number
- BR8107183A BR8107183A BR8107183A BR8107183A BR8107183A BR 8107183 A BR8107183 A BR 8107183A BR 8107183 A BR8107183 A BR 8107183A BR 8107183 A BR8107183 A BR 8107183A BR 8107183 A BR8107183 A BR 8107183A
- Authority
- BR
- Brazil
- Prior art keywords
- poliois
- preparation
- oxacyclopentane
- ring
- oxacyclopentane ring
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D493/00—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
- C07D493/02—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system in which the condensed system contains two hetero rings
- C07D493/04—Ortho-condensed systems
-
- 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
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/04—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
- C07D307/18—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D307/20—Oxygen atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3041673A DE3041673C2 (de) | 1980-11-05 | 1980-11-05 | Verfahren zur Herstellung von 1,4-Anhydrotetriten, 1,4-Anhydropentiten oder 1,4;3,6-Dianhydrohexiten |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR8107183A true BR8107183A (pt) | 1982-07-20 |
Family
ID=6115990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR8107183A BR8107183A (pt) | 1980-11-05 | 1981-11-05 | Processo para a preparacao de poliois com pelo menos um anel de oxaciclopentano |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0052295B1 (pt) |
| BR (1) | BR8107183A (pt) |
| DE (2) | DE3041673C2 (pt) |
| DK (1) | DK452581A (pt) |
| ES (1) | ES506841A0 (pt) |
| FI (1) | FI79306C (pt) |
| YU (1) | YU42591B (pt) |
| ZA (1) | ZA817113B (pt) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3111092A1 (de) | 1981-03-20 | 1982-09-30 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von 1.4-3.6-dianhydro-hexitolen |
| DE3229412A1 (de) * | 1982-08-06 | 1984-02-09 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von dianhydrohexitol-gemischen aus hexitolen, dianhydro-idit enthaltende dianhydro-hexitol-gemischen und ihre verwendung zur herstellung von polymeren |
| DE3230349A1 (de) * | 1982-08-14 | 1984-02-16 | Maizena Gmbh, 2000 Hamburg | Verfahren zur gewinnung reiner kristalliner anhydropentite, mono- und/oder dianhydrohexite |
| DE3233086A1 (de) * | 1982-09-07 | 1984-03-08 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von polyurethan-elastomeren unter verwendung von diolen der dianhydro-hexit-reihe in verbindung mit polyoxyalkylen-polydialkylsiloxan-copolymeren |
| DE3302603A1 (de) * | 1983-01-27 | 1984-08-02 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von polyurethanelastomeren unter verwendung von diolen der anhydro-tetrit-reihe |
| FR2617846B1 (fr) * | 1987-07-07 | 1992-07-17 | Beghin Say Sa | Procede de preparation d'anhydrides d'hexitols, d'hexonolactones et d'hexosides |
| NL1015119C2 (nl) * | 2000-05-04 | 2001-11-06 | Inst Agrotechnologisch Onderzoek Ato Dlo | Verbeterde synthese van anhydroglycitol-esters met verbeterde kleur. |
| FR2810040B1 (fr) * | 2000-06-09 | 2004-04-09 | Roquette Freres | Procede de purification d'une composition contenant au moins un produit de deshydratation interne d'un sucre hydrogene |
-
1980
- 1980-11-05 DE DE3041673A patent/DE3041673C2/de not_active Expired
-
1981
- 1981-10-13 DK DK452581A patent/DK452581A/da not_active Application Discontinuation
- 1981-10-14 ZA ZA817113A patent/ZA817113B/xx unknown
- 1981-10-30 EP EP81109422A patent/EP0052295B1/de not_active Expired
- 1981-10-30 DE DE8181109422T patent/DE3170424D1/de not_active Expired
- 1981-11-02 FI FI813442A patent/FI79306C/fi not_active IP Right Cessation
- 1981-11-04 YU YU2623/81A patent/YU42591B/xx unknown
- 1981-11-04 ES ES506841A patent/ES506841A0/es active Granted
- 1981-11-05 BR BR8107183A patent/BR8107183A/pt unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ES8302039A1 (es) | 1983-01-16 |
| ZA817113B (en) | 1982-09-29 |
| DE3041673C2 (de) | 1983-12-08 |
| DE3041673A1 (de) | 1982-06-03 |
| EP0052295A2 (de) | 1982-05-26 |
| EP0052295A3 (en) | 1982-08-25 |
| YU262381A (en) | 1983-06-30 |
| EP0052295B1 (de) | 1985-05-08 |
| DK452581A (da) | 1982-05-06 |
| ES506841A0 (es) | 1983-01-16 |
| FI79306B (fi) | 1989-08-31 |
| FI813442L (fi) | 1982-05-06 |
| FI79306C (fi) | 1989-12-11 |
| YU42591B (en) | 1988-10-31 |
| DE3170424D1 (en) | 1985-06-13 |
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