US4331814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulphones having a 1,5-dimethyl-hexa-1,5-dienylene group
Assignee: Rhone Poulenc SA
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Filing: 1973-02-01
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Granted: 1982-05-25
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Expires: 1993-02-01
Abstract
Abstract Sulphones useful for preparing polyenes have the formula: ##STR1## where the sulphonyl group replaces a hydrogen atom on carbon atom (a) or (b), R represents alkyl, aralkyl or aryl, optionally substituted, A and Q represent an optionally substituted hydrocarbon of 5n+1 carbon atoms (n is 1-5), methyl, optionally substituted by halogen, sulphide or sulphone, CH 2 OH (or an ether or ester thereof), CHO (optionally protected), COOH (or an acid chloride, ester or nitrile thereof), with the proviso that when A represents a 2-(2,6,6-trimethylcyclohex-1-enyl) ethenyl radical, Q cannot represent --COOH or an ester thereof.
Inventors
- 👤 Pierre Chabardes
- 👤 Marc Julia
- 👤 Albert Menet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:09
CPC Classifications
C; C07; C07C; C07C403/00; C07C403/24; C07C29/00; C07C29/132; C07C317/00; C07C317/14; C07C317/16; C07C317/18; C07C317/44; C07C403/06; C07C403/08; C07C403/12; C07C403/22; C07C2601/00; C07C2601/12; C07C2601/14; C07C2601/16
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
97 words
A sulphone of the formula: ##STR33## in which A represents 2-(2,6,6-trimethylcyclohex-1-enyl)-ethenyl, R represents an alkyl, aralkyl or aryl radical in which the said aryl is unsubstituted or substituted by chlorine or alkyl, and the group --SO 2 R replaces a hydrogen atom on carbon atom (a) or (b) and Q is an etherified primary alcohol group --CH 2 OH or the primary alcohol group --CH 2 OH or a free aldehyde group, or the group --SO 2 R replaces a hydrogen atom on carbon atom (a) and Q is an esterified primary alcohol group --CH 2 OH.
Claim 2
Dependent Claim
97 words
A sulphone of the formula: ##STR33## in which A represents 2-(2,6,6-trimethylcyclohex-1-enyl)-ethenyl, R represents an alkyl, aralkyl or aryl radical in which the said aryl is unsubstituted or substituted by chlorine or alkyl, and the group --SO 2 R replaces a hydrogen atom on carbon atom (a) or (b) and Q is an etherified primary alcohol group --CH 2 OH or the primary alcohol group --CH 2 OH or a free aldehyde group, or the group --SO 2 R replaces a hydrogen atom on carbon atom (a) and Q is an esterified primary alcohol group --CH 2 OH.
Claim 3
Dependent Claim
65 words
A sulphone according to claim 1 wherein Q is a primary alcohol group --CH 2 OH or an alkyl ether thereof containing a total of 2 to 7 carbon atoms or, when the group --SO 2 R replaces a hydrogen atom on carbon atom (a), Q is a primary alcohol group --CH 2 OH esterified by an alkanoic acid of 1 to 6 carbon atoms.
Claim 4
Dependent Claim
51 words
A sulphone of the formula: ##STR34## in which A represents 2-(2,6,6-trimethylcyclohex-1-enyl)-ethenyl, R represents an alkyl, aralkyl or aryl radical in which said aryl is unsubstituted or substituted by chlorine or alkyl, the group --SO 2 R replaces a hydrogen atom on carbon (a) or (b), and Q is an acetal group.
Claim 5
Dependent Claim
51 words
A sulphone of the formula: ##STR34## in which A represents 2-(2,6,6-trimethylcyclohex-1-enyl)-ethenyl, R represents an alkyl, aralkyl or aryl radical in which said aryl is unsubstituted or substituted by chlorine or alkyl, the group --SO 2 R replaces a hydrogen atom on carbon (a) or (b), and Q is an acetal group.
Claim 6
Dependent Claim
1 words
9-(2,6,6-Trimethyl-cyclohex-1-enyl)-5-phenyl-sulphonyl-3,7-dimethyl-1-acetoxy-nona-2,6,8-triene.
Claim 7
Dependent Claim
1 words
9-(2,6,6-Trimethyl-cyclohex-1-enyl)-5-phenyl-sulphonyl-3,7-dimethyl-1-acetoxy-nona-2,6,8-triene.
Claim 8
Dependent Claim
1 words
9-(2,6,6-Trimethyl-cyclohex-1-enyl)-5-phenyl-sulphonyl-3,7-dimethyl-nona-2,6,8-trienol.
Claim 9
Dependent Claim
1 words
9-(2,6,6-Trimethyl-cyclohex-1-enyl)-5-phenyl-sulphonyl-3,7-dimethyl-nona-2,6,8-trienol.
Claim 10
Dependent Claim
1 words
9-(2,6,6-Trimethyl-cyclohex-1-enyl)-5-phenyl-sulphonyl-3,7-dimethyl-1-methoxy-nona-2,6,8-triene.
Claim 11
Dependent Claim
1 words
9-(2,6,6-Trimethyl-cyclohex-1-enyl)-5-phenyl-sulphonyl-3,7-dimethyl-1-methoxy-nona-2,6,8-triene.
Claim 12
Dependent Claim
1 words
9-(2,6,6-Trimethyl-cyclohex-1-enyl)-5-phenyl-sulphonyl-3,7-dimethyl-1,1-diethoxy-nona-2,6,8-triene.
Claim 13
Dependent Claim
1 words
9-(2,6,6-Trimethyl-cyclohex-1-enyl)-5-phenyl-sulphonyl-3,7-dimethyl-1,1-diethoxy-nona-2,6,8-triene.
References Cited (Backward Citations)
US3075003A
Cited
US3665040A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-05-24 | 1985-11-23 | 1986-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-24 | 1989-11-23 | 1990-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-24 | 1993-11-23 | 1994-05-25 | $7700.00 | Window Closed / Lapsed |