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公开(公告)号：DE3214658A1
公开(公告)日：1982-11-18
申请号：DE3214658
申请日：1982-04-21
Applicant: BASF AG
Inventor： THOEMEL FRANK DIPL CHEM DR , HOFFMANN WERNER DIPL CHEM DR , JANSEN KLAAS , DEGNER DIETER DR
IPC: C07C47/575 , C11B9/00 , A61K7/46 , C11D3/50 , C11D9/44
Abstract: Perfume compositions containing p-tert.-butoxy- and/or p-tert.-amyloxybenzaldehyde as perfume component besides other odoriferous substances, as well as the use of these compounds in place of alpha -methyl-p-tert.-butyl- or alpha -methyl-p-isopropyldihydrocinnamaldehyde. The said p-tert.-alkoxybenzaldehydes are scents with the desired sweet-flowery notes which have recently become very advantageously available industrially by electrochemical oxidation of p-tert.-alkoxytoluene in the presence of an alcohol and subsequent acetal cleavage.
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公开(公告)号：DE3112056A1
公开(公告)日：1982-10-07
申请号：DE3112056
申请日：1981-03-27
Applicant: BASF AG
IPC: C07C45/45 , C07C49/403 , C07C49/427 , C07C49/443 , C07C49/657 , C07C49/713
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公开(公告)号：DE3028417A1
公开(公告)日：1982-02-25
申请号：DE3028417
申请日：1980-07-26
Applicant: BASF AG
IPC: A61K8/37 , A61K31/215 , A61Q17/04 , C07C67/30 , C07C69/734 , C07C69/736 , A61K7/42
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公开(公告)号：DE2925176A1
公开(公告)日：1981-01-22
申请号：DE2925176
申请日：1979-06-22
Applicant: BASF AG
Abstract: (Ia), also known as beta-damascone, and 2,6,6-trimethyl-1-crotonyl-cyclohexa-1,3-diene, (Ib), also known as beta-damascenone, are prepd. by (a) reacting 2,2,6-trimethyl-cyclohexanone, (IIa) or 2,6,6-trimethyl-cyclohex-2 -en-one, (IIb), with 3-tert. butyloxy-1-butyne, (III), in the presence of a strong base, and then (b) rearranging the alcohol (IV) obtd. to (I) by treatment, at 45-100 deg.C, with an acid catalyst having acid strength at least equal to or higher than that of HCOOH. (Ia) and (Ib) are perfumes and aromatisers for food and cosmetics. Use of (III) in place of butyn-3-ol suppressed the formation of spiro cpds. and increased the yields of (Ia) or (Ib). Alkali metal hydroxides can be used as strong bases in step (a), together with hydrocarbon or ether solvents.
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Patent Agency Ranking
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公开(公告)号：DE2717737A1
公开(公告)日：1978-10-26
申请号：DE2717737
申请日：1977-04-21
Applicant: BASF AG
IPC: A61K31/07 , A61K31/23 , C07C21/02 , C07C22/02 , C07C67/00 , C07C401/00 , C07C403/00 , C07C403/02 , C07C403/04 , C07C403/08 , C07C403/12 , C07F9/50 , C07F9/54 , C07C175/00 , A61K31/66 , A61K31/035
Abstract: New derivatives of 8-dehydro-vitamin A obtained by vinylating or ethynylating and subsequently partially hydrogenating, 1-[3-methyl-octa-1-yne,3,5,-dien-7-on-1-yl]-2,6-dimethyl-cyclohex-1-ene or its 5- and/or 6-methyl derivatives, converting the resulting alcohols to the corresponding derivatives of 8-dehydro-vitamin A halides by reacting with thionyl chloride or phosgene, and if required converting the resulting alcohols or halides to the corresponding trialkylphosphonium salts or triarylphosphonium salts, or reacting the 8-dehydro-vitamin A halide derivatives with alkali metal salts or alkaline earth metal salts or anhydrides of lower carboxylic acids. The new compounds can be partially hydrogenated to the corresponding polyene compounds, in which case the cis-trans isomer mixtures first obtained can be rearranged in the conventional manner to the physiologically active all-trans compounds. Accordingly, the process provides a method for the total synthesis of vitamin A, and of other compounds of the carotinoid series, which is independent of the Wittig ylide synthesis.
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公开(公告)号：DE2717502A1
公开(公告)日：1978-10-26
申请号：DE2717502
申请日：1977-04-20
Applicant: BASF AG
IPC: C07C403/14 , C07C20060101 , C07C43/30 , C07C43/303 , C07C67/00 , C07C401/00 , C07C403/00 , C07C403/10 , C07C175/00
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公开(公告)号：DE2642519A1
公开(公告)日：1978-03-23
申请号：DE2642519
申请日：1976-09-22
Applicant: BASF AG
Abstract: Prodn. of tricyclo 5,2,1,02,6 -dec-3-en-9(8)-yl alkyl or alkenyl ethers (I) comprises reacting dicyclopentadiene (II) with an alkanol or alkenol at high temp. in the presence of a strongly acid ion exchanger, esp. one having SO3H groups and pK 1. Pref. 1-12C alkanols or 3-12C alkenols are used. (I) are useful as perfume components providing rooty, fruity and flowery notes. They are also intermediates for aldehydes, amines, carboxylic acids and alcohols. Yields are good and sepn. from the catalyst is easy. In an example, the methyl ether was obtd. in 91% yield on converted (II) using 'Lewatit S100' (RTM) as catalyst.
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公开(公告)号：DE2633665A1
公开(公告)日：1978-02-02
申请号：DE2633665
申请日：1976-07-27
Applicant: BASF AG
IPC: C07D307/32
Abstract: of formula (I) is new. (where R is It has a spicy tar-like aroma and can be used as a perfuming agent with leather, wood or cypress-type fragrance. It is also a starting material in the synthesis of 4-oxo-3-hydroxy-2,5-dimethyl-4,5-dihydrofuran, which is also a valuable perfuming agent. Cpd. (I) may be prepd. by reacting benzyl crotonate with a lactic acid ester at -20 to 120 degrees C or reacting a 2,5-dimethyl-3-carbalkoxy-tetrahydrofuran-4-one with benzyl alcohol at 50-250 degrees C, esp. 150-200 degrees C.
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