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JPS60347B2 |
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JPS5953902B2 |
There is disclosed a novel process for the preparation of vitamin A acetate whereby gamma -acetoxy-tiglic aldehyde is reacted with the salt formed by the reaction of vinyl- beta -ionol, triphenylphosphine and an acid.
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JPS5953903B2 |
Vitamin A alcohol and its lower alkanoic esters are prepared by desulphonation of corresponding sulphones with a solid potassium alcoholate of a primary or secondary lower alcohol at 10 DEG to 50 DEG C. in an anhydrous liquid hydrocarbon.
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JPS5953904B2 |
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JPS59225114A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS5950648B2 |
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JPS5950705B2 |
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JPS5947594B2 |
Described is a process for augmenting or enhancing the aroma and taste of a smoking tobacco comprising adding to said smoking tobacco an organoleptic property modifying quantity of a composition of matter comprising more than 50% trans,t...
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JPS59175441A |
PURPOSE: To convert a non-conjugated unsaturated chain compound composed of recurring unit having exomethylene group and sulfone group to a conjugated polyene compound, by carrying out the rearrangement of the double bond simultaneously ...
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JPS5940144B2 |
Compounds of the formula I wherein R, R1, R2, R3 and R4 represent certain specified substituent groups. The compounds exhibit activity in the reserpine induced hypothermia test.
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JPS5935368B2 |
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JPS5934183B2 |
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JPS5933587B2 |
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JPS59118764A |
Cyclopropyl substituted polyenes of the formula wherein R and R min are independently hydrogen atoms or lower alkyl groups; R sec is a hydroxy or lower alkoxy group or a group -NHR''' wherein R''' is a hydrogen atom or a lower alkyl grou...
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JPS59116244A |
Naphthenic and heterocyclic retinoic acid analogues such as (E)-6-[2-(2,6,6-trimethyl-1-cyclohexen-1-yl)ethenyl]-2-napht
haldehyde, methyl 6-[2-(2,6,6-trimethyl-1-cyclohexen-1-yl)ethenyl]-2-naphthoat
e, 6-[2-(2,6,6-trimethyl-1-cyclohexen...
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JPS5926624B2 |
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JPS59108764A |
New acetylenic and allenic carbinols of formula respectively, wherein symbol R stands for a trialkyl-silyl or a C1 to C6 alkyl radical, preferably a methyl, a tert-butyl or an isoamyl radical, or a group of formula (II) wherein, when tak...
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JPS5924973B2 |
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JPS5995263A |
Aromatic retinoic acid analogues of the formula where X is hydrogen or fluorine, Y is hydrogen, halogen of atomic number 9 or 17, hydroxy, alkyl of 1 to 2 carbon atoms or alkoxy of 1 to 2 carbon atoms and R is hydroxy, alkoxy, aroxy, or ...
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JPS5921863B2 |
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JPS5919934B2 |
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JPS5919935B2 |
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JPS5919933B2 |
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JPS5919535B2 |
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JPS5919534B2 |
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JPS5915907B2 |
A novel procedure for photochemical isomerization of vitamin A compounds or derivatives thereof in the absence of sensitizers is disclosed.
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JPS5910659B2 |
Symmetrical carotenoids are prepared from the half-molecules by dimerizing the phosphonium salts of the half-molecules with peroxides, peroxo compounds or peroxy compounds in an alkaline medium.
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JPS5933258A |
NEW MATERIAL:A compound shown by the formula I [R1 is H, or 1W4C alkyl; R2 is 1W8C alkylene; R3 is H, 1W15C alkyl, or CH2-A-R4 (A is cis-vinylene, or acetylene; R4 is 1W12C alkyl); double bond between C10-C11 shows E]. EXAMPLE: ( 5RS )-6...
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JPS5927835A |
PURPOSE: To utilize completely a plant body, by extracting a colored vegetable, mushroom, microbial algal body, etc. with an organic solvent in a high concentration, extracting the resultant residue with hot water, and recovering the com...
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JPS591692B2 |
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JPS5854133B2 |
Compounds of the formula ARE PREPARED BY HYDRATING NOVEL COMPOUNDS OF THE FORMULA AND CLEAVING OFF THE DIMORPHOLINO GROUP.
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JPS5851944B2 |
Novel odorants of the formula: (I) wherein one of three lines indicated by dots represents an additional bond.
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JPS5846509B2 |
A process for preparing 2 -methylene- 3-(4-methylcyclohex-3-enyl)- butanal or 2-methylene-3-(4-methylcyclohexyl)- butanal comprises reacting 3-(4-methylcyclohex-3-enyl)-butanal or 3-(4-methylcyclohexyl)-butanal with formaldehyde or a for...
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JPS5845419B2 |
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JPS5845418B2 |
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JPS58501654A |
PCT No. PCT/AU82/00165 Sec. 371 Date Jun. 7, 1983 Sec. 102(e) Date Jun. 7, 1983 PCT Filed Oct. 7, 1982 PCT Pub. No. WO83/01257 PCT Pub. Date Apr. 14, 1983.A method for harvesting algae of the genus Dunaliella from suspensions thereof in ...
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JPS5844658B2 |
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JPS58148855A |
A process for the manufacture of the novel compound of the formula II from the compound of the formula I is described. This process comprises cathodically reducing the compound of formula I in a basic, aqueous-organic solvent mixture. Th...
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JPS5827266B2 |
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JPS5888353A |
Astaxanthin is extracted from crustacean shells by means of a solvent chosen from carboxylic acid esters containing from 1 to 5 carbon atoms; the operation is carried out practically at ambient temperature.
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JPS5821889B2 |
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JPS5821619B2 |
1382000 Flavourings L GIVAUDAN & CIE SA 17 Oct 1973 [17 Oct 1972] 48385/73 Heading A2B [Also in Divisions A5 and C2] Foodstuffs are flavoured with a compound of the formula: where R is H or acetyl and the broken lines denote a double-bon...
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JPS5819657B2 |
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JPS5819658B2 |
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JPS5819659B2 |
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JPS5865236A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS5818056B2 |
1382000 Flavourings L GIVAUDAN & CIE SA 17 Oct 1973 [17 Oct 1972] 48385/73 Heading A2B [Also in Divisions A5 and C2] Foodstuffs are flavoured with a compound of the formula: where R is H or acetyl and the broken lines denote a double-bon...
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JPS5817509B2 |
The xanthophyll esters, that are normally recovered from plant sources such as the marigold plant, Tagetes erecta, are selectively saponified. The neutralized, selectively saponified material, when incorporated into an inert carrier, pro...
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JPS5835181A |
Prepn. of carbofuran (I) comprises reacting 1,2-cyclohexanedione with a beta-methallyl alcohol or halide in the presence of an alkylating catalyst to form 2-beta-methallyloxy-2-cyclohexen-1-one (II). This is then heated to cause rearrang...
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JPS587638B2 |
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