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(12) Patent: | (11) CA 1042906 |
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(21) Application Number: | 227117 |
(54) English Title: | PROCESS FOR THE PREPARATION OF MONO-ACYLOXY (OR AROYL-OXY) ALKYLEN-CARBONATES AND PRODUCTS OBTAINED |
(54) French Title: | CARBONATES DE MONO-ACYLOXY (OU AROYL-OXY) ALCYLENES |
Status: | Expired |
(52) Canadian Patent Classification (CPC): |
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(51) International Patent Classification (IPC): |
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(72) Inventors : |
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(73) Owners : |
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(71) Applicants : | |
(74) Agent: | |
(74) Associate agent: | |
(45) Issued: | 1978-11-21 |
(22) Filed Date: | |
Availability of licence: | N/A |
(25) Language of filing: | English |
Patent Cooperation Treaty (PCT): | No |
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(30) Application Priority Data: | None |
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ABSTRACT OF THE DISCLOSURE:
Process for the preparation of alkylencarbonates
of the formula:
Image
wherein R1 and R2 each represent a hydrogen atom,and R
represents a lower alkyl radical consisting of reacting
compounds of the type
Image
wherein R1 and R2 have the aforesaid meanings and Y represents
a halogen atom, with an alkaline or alkaline earth metal salt
of a carboxylic acid RCOOH wherein R has the aforesaid meainings,
in presence of that acid itself and the products obtained
thereof. These products are useful as intermediates for numerous
organic synthesis, such as for the preparation of .beta.-hydroxy-
aminoacids or .alpha., .alpha., .beta.-tri-acyl (aroyl) oxy-derivatives.
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 1042906 was not found.
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Title | Date |
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Forecasted Issue Date | 1978-11-21 |
(45) Issued | 1978-11-21 |
Expired | 1995-11-21 |
There is no abandonment history.
Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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SNAMPROGETTI S.P.A. |
Past Owners on Record |
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None |