1.
    发明专利
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    公开(公告)号:BRPI0406639A

    公开(公告)日:2005-12-06

    申请号:BRPI0406639

    申请日:2004-01-21

    Applicant: BASF AG

    Abstract: Production of aqueous formulations comprises heating 2-organyl-oxy-, -thio- or -amino-dihydrofuran, dihydropyran, tetrahydrooxepin and tetrahydrooxocin compound(s) in the presence of water and an acid catalyst and (partly) removing the hydroxy, thio or amine compound during or at the end of heating. Production of aqueous formulations comprises heating 2-organyl-oxy-, -thio- or -amino-dihydrofuran, dihydropyran, tetrahydrooxepin and tetrahydrooxocin compound(s) of formula (I) in the presence of water and an acid catalyst and (partly) removing H-X-R3 during or at the end of heating. X = O, S or N-R6; R3, R6 = R, formyl or CO-R or may be combined to a ring if X is N-R6' R = 1-12 C alkyl or an optionally substituted 3-23 C cycloalkyl, 7-13 C aralkyl or 6-14 C aryl group; R1, R2, R4 = H or R or 2 adjacent groups may be combined to a ring; n = 1-4; and R5 = H or R or R4 and R5 or 2 adjacent R5 groups may be combined to a ring. Independent claims are also included for the following: (A) aqueous formulations prepared by this process; and (B) mixtures of dimers, oligomers and polymers of dicarbonyl compound(s) of formula (III).

    PROCEDIMIENTO PARA LA OBTENCION DE ALDEHIDOS ALIFATICOS Y SU EMPLEO COMO PERFUMES.

    公开(公告)号:ES2011041B3

    公开(公告)日:1989-12-16

    申请号:ES87109170

    申请日:1987-06-26

    Applicant: BASF AG

    Abstract: ALDEHIDOS ALIFATICOS CON LA FORMULA GENERAL (I): EN LA CUAL: R1 ES HIDROGENO O UN GRUPO METILICO; R (AL CUADRADO) ES UN RESTO ALQUILICO DE CADENA LISA O ARBORESCENTE CON 1 A 4 ATOMOS DE CARBONO; Y LOS DOS X REPRESENTAN O HIDROGENO O JUNTOS UN ENLACE CC, ESPECIALMENTE: 2,5,7,7-TETRAMETILO-OCTANALO, 2,4,5,7,7-PENTAMETILO-OCTANALO, 2-ETILO-5,7,7-TRIMETILO-2-OCTEN-1-AL. COMPOSICIONES DE PERFUMES QUE CONTIENEN ESTOS ALDEHIDOS ASI COMO UN PROCEDIMIENTO PARA LA FABRICACION DE ESTOS ALDEHIDOS ALIFATICOS QUE SE CARACTERIZA POR LA CONDENSACION DE UN ALDEHIDO DE LA FORMULA GENERAL (II): CON UN ALDEHIDO DE LA FORMULA GENERAL (III): EN PRESENCIA DE UN CATALIZADOR DE CONDENSACION EN EL OCTENALO SUSTITUIDO DE LA FORMULA GENERAL (I) Y EN CASO DADO POR LA HIDRATACION O REDUCCION HASTA EL OCTANALO RESPECTIVO DE LA FORMULA (I).

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