One-pot synthesis of ?-valerolactone from tetrahydrofurfuryl alcohol and ?-valerolactone amidation over Сu/ZnO-Al<sub>2</sub>O<sub>3</sub> catalyst
It has been found that tetrahydrofurfuryl alcohol transforms into ?-valerolactone over Сu/ZnO-Al2O3 catalyst at 270–280°С. ?-Valerolactone can be used for obtaining biodegradable polyesters and copolymers. Proposed Сu/ZnAl-1 catalyst containing 40 wt. % of CuO provides 40–50% alcohol conversion with...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Chuiko Institute of Surface Chemistry of NAS of Ukraine
2016-11-01
|
| Series: | Хімія, фізика та технологія поверхні |
| Subjects: | |
| Online Access: | https://cpts.com.ua/index.php/cpts/article/view/399 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849303885087244288 |
|---|---|
| author | V. V. Brei A. M. Varvarin S. V. Prudius |
| author_facet | V. V. Brei A. M. Varvarin S. V. Prudius |
| author_sort | V. V. Brei |
| collection | DOAJ |
| description | It has been found that tetrahydrofurfuryl alcohol transforms into ?-valerolactone over Сu/ZnO-Al2O3 catalyst at 270–280°С. ?-Valerolactone can be used for obtaining biodegradable polyesters and copolymers. Proposed Сu/ZnAl-1 catalyst containing 40 wt. % of CuO provides 40–50% alcohol conversion with 80–85% lactone selectivity under hydrogen flow at 0.1 MPa. The reaction pathway from tetrahydrofurfurol to ?-valerolactone has been proposed: it is speculated that alcohol is initially dehydrogenated into tetrahydrofurfural, which rearranges to lactone. Vapor-phase amidation of ?-valerolactone with ammonia into ?-valerolactam, as raw material for obtaining polyamide nylon-5, was also investigated. It has been shown that among studied Cu-containing oxides Сu/ZnAl-1 catalyst provides higher 80 % ?-valerolactam selectivity at 90% lactone conversion at 280°С under ammonia, hydrogen and steam flow with strictly certain molar ratio. The process proceeds via disclosure of lactone cycle with intermediate 5-hydroxypentamide formation. |
| format | Article |
| id | doaj-art-e4558fb369d4477a9e42abe766404647 |
| institution | Kabale University |
| issn | 2079-1704 2518-1238 |
| language | English |
| publishDate | 2016-11-01 |
| publisher | Chuiko Institute of Surface Chemistry of NAS of Ukraine |
| record_format | Article |
| series | Хімія, фізика та технологія поверхні |
| spelling | doaj-art-e4558fb369d4477a9e42abe7664046472025-08-20T03:55:54ZengChuiko Institute of Surface Chemistry of NAS of UkraineХімія, фізика та технологія поверхні2079-17042518-12382016-11-017410.15407/hftp07.04.395One-pot synthesis of ?-valerolactone from tetrahydrofurfuryl alcohol and ?-valerolactone amidation over Сu/ZnO-Al<sub>2</sub>O<sub>3</sub> catalystV. V. Brei0A. M. Varvarin1S. V. Prudius2Institute for Sorption and Problems of Endoecology of National Academy of Sciences of UkraineInstitute for Sorption and Problems of Endoecology of National Academy of Sciences of UkraineInstitute for Sorption and Problems of Endoecology of National Academy of Sciences of UkraineIt has been found that tetrahydrofurfuryl alcohol transforms into ?-valerolactone over Сu/ZnO-Al2O3 catalyst at 270–280°С. ?-Valerolactone can be used for obtaining biodegradable polyesters and copolymers. Proposed Сu/ZnAl-1 catalyst containing 40 wt. % of CuO provides 40–50% alcohol conversion with 80–85% lactone selectivity under hydrogen flow at 0.1 MPa. The reaction pathway from tetrahydrofurfurol to ?-valerolactone has been proposed: it is speculated that alcohol is initially dehydrogenated into tetrahydrofurfural, which rearranges to lactone. Vapor-phase amidation of ?-valerolactone with ammonia into ?-valerolactam, as raw material for obtaining polyamide nylon-5, was also investigated. It has been shown that among studied Cu-containing oxides Сu/ZnAl-1 catalyst provides higher 80 % ?-valerolactam selectivity at 90% lactone conversion at 280°С under ammonia, hydrogen and steam flow with strictly certain molar ratio. The process proceeds via disclosure of lactone cycle with intermediate 5-hydroxypentamide formation.https://cpts.com.ua/index.php/cpts/article/view/399catalytic dehydrogenationtetrahydrofurfuryl alcoholδ-valerolactoneδ-valerolactamCu-catalyst |
| spellingShingle | V. V. Brei A. M. Varvarin S. V. Prudius One-pot synthesis of ?-valerolactone from tetrahydrofurfuryl alcohol and ?-valerolactone amidation over Сu/ZnO-Al<sub>2</sub>O<sub>3</sub> catalyst Хімія, фізика та технологія поверхні catalytic dehydrogenation tetrahydrofurfuryl alcohol δ-valerolactone δ-valerolactam Cu-catalyst |
| title | One-pot synthesis of ?-valerolactone from tetrahydrofurfuryl alcohol and ?-valerolactone amidation over Сu/ZnO-Al<sub>2</sub>O<sub>3</sub> catalyst |
| title_full | One-pot synthesis of ?-valerolactone from tetrahydrofurfuryl alcohol and ?-valerolactone amidation over Сu/ZnO-Al<sub>2</sub>O<sub>3</sub> catalyst |
| title_fullStr | One-pot synthesis of ?-valerolactone from tetrahydrofurfuryl alcohol and ?-valerolactone amidation over Сu/ZnO-Al<sub>2</sub>O<sub>3</sub> catalyst |
| title_full_unstemmed | One-pot synthesis of ?-valerolactone from tetrahydrofurfuryl alcohol and ?-valerolactone amidation over Сu/ZnO-Al<sub>2</sub>O<sub>3</sub> catalyst |
| title_short | One-pot synthesis of ?-valerolactone from tetrahydrofurfuryl alcohol and ?-valerolactone amidation over Сu/ZnO-Al<sub>2</sub>O<sub>3</sub> catalyst |
| title_sort | one pot synthesis of valerolactone from tetrahydrofurfuryl alcohol and valerolactone amidation over сu zno al sub 2 sub o sub 3 sub catalyst |
| topic | catalytic dehydrogenation tetrahydrofurfuryl alcohol δ-valerolactone δ-valerolactam Cu-catalyst |
| url | https://cpts.com.ua/index.php/cpts/article/view/399 |
| work_keys_str_mv | AT vvbrei onepotsynthesisofvalerolactonefromtetrahydrofurfurylalcoholandvalerolactoneamidationoversuznoalsub2subosub3subcatalyst AT amvarvarin onepotsynthesisofvalerolactonefromtetrahydrofurfurylalcoholandvalerolactoneamidationoversuznoalsub2subosub3subcatalyst AT svprudius onepotsynthesisofvalerolactonefromtetrahydrofurfurylalcoholandvalerolactoneamidationoversuznoalsub2subosub3subcatalyst |