Some of the information on this Web page has been provided by external sources. The Government of Canada is not responsible for the accuracy, reliability or currency of the information supplied by external sources. Users wishing to rely upon this information should consult directly with the source of the information. Content provided by external sources is not subject to official languages, privacy and accessibility requirements.
Any discrepancies in the text and image of the Claims and Abstract are due to differing posting times. Text of the Claims and Abstract are posted:
(12) Patent: | (11) CA 1049035 |
---|---|
(21) Application Number: | 227218 |
(54) English Title: | PROCESS FOR THE PREPARATION OF TRIESTERS AND PRODUCTS THUS OBTAINED |
(54) French Title: | PROCEDE POUR LA PREPARATION DE TRIESTERS ET PRODUITS OBTENUS PAR CE PROCEDE |
Status: | Expired |
(52) Canadian Patent Classification (CPC): |
|
---|---|
(51) International Patent Classification (IPC): |
|
(72) Inventors : |
|
(73) Owners : |
|
(71) Applicants : | |
(74) Agent: | |
(74) Associate agent: | |
(45) Issued: | 1979-02-20 |
(22) Filed Date: | |
Availability of licence: | N/A |
(25) Language of filing: | English |
Patent Cooperation Treaty (PCT): | No |
---|
(30) Application Priority Data: | None |
---|
ABSTRACT OF THE DISCLOSURE:
A process for the preparation of triester of the
formula:
Image
wherein R is an alkyl radical of 1 to 5 carbon atoms consisting
in reacting a compound of the type:
Image
Y is an halogen atom or represent a -OCOR radical, with an
anhydride of a carboxylic acid RCOOH wherein R has the above
meaning, and with that acid and an alkaline or alkaline earth
metal salt thereof. The so obtained products are useful as
intermediates for organic synthesis such as the preparation of
?-hydroxy-aldehydes, ?-acyloxy-(aryloxy)-aldehydes or
.beta.-hydroxy-aminoacids.
Note: Claims are shown in the official language in which they were submitted.
Note: Descriptions are shown in the official language in which they were submitted.
Sorry, the representative drawing for patent document number 1049035 was not found.
For a clearer understanding of the status of the application/patent presented on this page, the site Disclaimer , as well as the definitions for Patent , Administrative Status , Maintenance Fee and Payment History should be consulted.
Title | Date |
---|---|
Forecasted Issue Date | 1979-02-20 |
(45) Issued | 1979-02-20 |
Expired | 1996-02-20 |
There is no abandonment history.
Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
---|
SNAMPROGETTI S.P.A. |
Past Owners on Record |
---|
None |