摘要:
3-Methyl-2-oxo-ethylpentanoate or an isomer thereof are very useful compounds in the field of perfumery, having an unusual, fruity odor note that can be described as a fresh walnut odor together with a rum type note.
摘要:
A compound of formula ##STR1## wherein X represents a C.dbd.O group or a CH--OH group, in the form of an optically active isomer of formula ##STR2## wherein X has the meaning indicated above and, when X is a CH--OH group, the asymmetric carbon (2) has an R configuration, or in the form of a mixture of isomers, is very useful in the field of perfumery, having an unusual, fruity odor note that can be described as a fresh walnut odor together with a rhum type note.
摘要:
The present invention relates to the use in perfumery of compounds of the general formulae ##STR1## in which R.sup.1 and R.sup.2 are identical or different and represent each a methyl or ethyl group, R.sup.3 represents hydrogen or an alkyl group from C.sub.1 to C.sub.4, linear or branched, and R.sup.4 represents hydrogen, an alkyl group from C.sub.1 to C.sub.4, linear or branched, or an acyl group of formula R.sup.5 C(O)--, R.sup.5 being hydrogen or an alkyl group from C.sub.1 to C.sub.4, linear or branched. The novel odoriferous character of these compounds is the combination of woody with fruity notes. Also described is a synthesis for the preparation of the compounds of formula (I) starting from the compounds of formula (II).
摘要:
New 4,4,5,8-tetramethyl-1-oxaspiro[2,5]octane. A process for its preparation starting from 2,2,3,6-tetramethyl-1-cyclohexanone is described.4,4,5,8-Tetramethyl-1-oxaspiro[2,5]octane is a useful raw material for the preparation of 2,2,3,6-tetramethyl-cyclohexane-carbaldehyde, a key intermediate for the synthesis of valuable fragrance ingredients.
摘要:
New 4,4,5,8-tetramethyl-1-oxaspiro[2.5]octane. A process for its preparation starting from 2,2,3,6-tetramethyl-1-cyclohexanone is described.4,4,5,8-Tetramethyl-1-oxaspiro[2.5]octane is a useful raw material for the preparation of 2,2,3,6-tetramethyl-cyclohexane-carbaldehyde, a key intermediate for the synthetis of valuable fragrance ingredients.
摘要:
Novel cycloaliphatic alcohols of formula ##STR1## wherein each of symbols R.sup.1 and R.sup.2 designates a methyl radical or wherein R.sup.1 designates an ethyl radical and R.sup.2 stands for a methyl radical or a hydrogen atom, possess useful fragrance properties and consequently can be used in the perfume industry.A process for their preparation starting from an allenic carbinol is disclosed.
摘要:
Novel compounds of formula ##STR1## wherein: a. R.sup.1 =CH.sub.3 ; n=m=1; R.sup.2 =CH.sub.3 ; R.sup.3 =R.sup.4 =H,b. R.sup.1 =CH.sub.2 ; n=0; m=1; R.sup.2 =CH.sub.3 ;R.sup.3 =R.sup.4 =H,C. R.sup.1 =CH--CH.sub.3 ; n=0; m=1; R.sup.2 =CH.sub.3 ; R.sup.3 =R.sup.4 =H,d. R.sup.1 =H; n=m=0; R.sup.2 =R.sup.4 =CH.sub.3 ; R.sup.3 =C.sub.2 H.sub.5,e. R.sup.1 =H; n=m=0; R.sup.2 =R.sup.3 =R.sup.4 =CH.sub.3,f. R.sup.1 =H; n=m=0; R.sup.2 =CH.sub.3 ; R.sup.3 =C.sub.2 H.sub.5 ; R.sup.4 =H,g. R.sup.1 =H; n=m=0; R.sup.2 =R.sup.3 =CH.sub.3 ; R.sup.4 =H,h. R.sup.1 =H; n=m=1; R.sup.2 =CH.sub.3 ; R.sup.3 =C.sub.2 H.sub.5 ; R.sup.4 =Hi. R.sup.1 =H; n=m=1; R.sup.2 =R.sup.3 =CH.sub.3 ; R.sup.4 =Hand wherein one of the dotted lines stands for a single carbon-carbon bond and the other one for a double bond, or each of them designates a single bond, possess odorous properties of sandalwood type and consequently can find a utility for the preparation of perfumes and perfumed products.
摘要翻译:新颖的式(Ⅰ)化合物其中:a。 R1 = CH3; n = m = 1; R2 = CH3; R3 = R4 = H,b。 R1 = CH2; n = 0; m = 1; R 2 = CH 3; R 3 = R 4 = H,C 1 = CH-CH 3; n = 0; m = 1; R2 = CH3; R3 = R4 = H,d。 R1 = H; n = m = 0; R2 = R4 = CH3; R3 = C2H5,e。 R1 = H; n = m = 0; R2 = R3 = R4 = CH3,f。 R1 = H; n = m = 0; R2 = CH3; R3 = C2H5; R4 = H,g。 R1 = H; n = m = 0; R2 = R3 = CH3; R4 = H,h。 R1 = H; n = m = 1; R2 = CH3; R3 = C2H5; R4 = H i。 R1 = H; n = m = 1; R2 = R3 = CH3; R4 = H,其中一条虚线代表单个碳 - 碳键,另一条代表双键,或每一个表示单键,具有檀香型的气味特性,因此可找到用于 香水和香水制品的制备。
摘要:
The use of 1-methoxy-2-methyl-3-phenylpropane, 3-methoxy-2,2,3-trimethyl-1-phenylbutane or of 1-(2-methoxypropyl)-4-methylbenzene as perfuming ingredients is described. These two compounds possess an excellent stability in aggressive media and/or at high pH-values, which renders them very useful for application in chlorine bleach. The odor of these two compounds can be described as being of the green type with a nice, strong floral note.
摘要:
Novel compounds of formula ##STR1## wherein the dotted lines indicate the location of a single or double bond, symbol R.sup.1 stands for a hydrogen atom or a methyl radical, symbol R.sup.2 represents a linear or branched, saturated or unsaturated, C.sub.1 to C.sub.4 alkyl radical, provided that R.sup.1 is not hydrogen when R.sup.2 represents a methyl or n-propyl radical and the ring is saturated. Compounds (Ia) are useful as perfuming ingredients.A process for their preparation is disclosed.