摘要:
The perfume composition containing 4- (or 5-)-acyl-1,1- (or 3,3-)-[a] compound, which is a novel compound expressed by the formula I, has noble musk fragrance. In addition, this perfume composition has characteristics that it is excellent in both quality and strength of the fragrance, of high safety and capable of being manufactured with low costs.
摘要:
A growth inhibitor for cariogenic bacteria which comprises containing therein dihydroguaiaretic acid as an active ingredient. In particular, the effect of growth inhibition to Streptococcus mutans RIMD 3125001 strain can be obtained at a concentration of 1/50,000.
摘要:
A process for preparing parabenzoquinones which comprises oxidizing alkylphenols with oxygen or an oxygen-containing gas in the presence of cobalt di-(salcylal)-3,3'-diimino-di-n-propylamine derivatives and an amine is disclosed.
摘要:
5-Acetyl-1,2,6-trimethyltricyclo[5,3,2,0.sup.2,7 ]dodeca-5-ene having the formula (I) v,2/14And a process for producing this compound. This compound is useful as a perfume.
摘要:
1,2,6-Trimethyltricyclo[5,3,2,0.sup.2,7 ]dodeca-5-one having the formula (I) ##SPC1##and a process for producing this compound. This compound is useful as a perfume.
摘要:
A method for protecting plants against oxidant injury comprising topically applying one or more compounds containing a methylenedioxyphenyl radical.
摘要:
A process for producing cyclopolyenes (1,5, . . . . 4n + 5) having 8 + 4n carbon atoms where n is an integer of from 1 to 7 comprising polymerizing cyclooctadiene in the presence of a rhenium catalyst using alumina or alumina-boria as a carrier. Cycloalkenes are useful as intermediates in perfumery and as additives for cosmetics.
摘要:
Isoprene is trimerized as a chain by using a catalyst system obtained by reducing a nickel compound with an organic aluminum compound in the presence of a ligand selected from the group consisting of an acetylene compound, an organic arsenic compound, an organic antimony compound, a phosphorus compound, an isonitrile compound and an isocyanate compound, to prepare isoprene trimer of the formula (I):
摘要:
A new compound, 2-(1'' -hydroxymethyl - ethyl) -5- methyl-5-vinyl - tetrahydrofuran has been discovered in an essential oil of a lilac flower. This compound consists of four steroisomers and is useful as an ingredient to be incorporated in floral perfumes. This compound is obtained by selectively reducing the formyl radical of 2- (1'' formylethyl) -5- methyl-5- vinyl tetrahydrofuran.
摘要:
A PROCESS FOR THE PREPARATION OF A HIGHLY REACTIVE ORGANO-MAGNESIUM COMPOUND WHICH COMPRISES REACTING A CONJUGATED DIENE COMPOUND WITH METALLIC MAGNESIUM IN A SOLVENT SELECTED FROM THE GROUP CONSISTING OF AN ETHER COMPOUND AND A MIXTURE OF SAID ETHER COMPOUND WITH A GREGNARD REAGENT INACTIVE SOLVENT, IN THE PRESENCE OF A LEWIS ACID CATALYST WITH THE PROVISO THAT THE LEWIS ACID CATALYST MAY NOT BE A CATALYST OF METLAS BELONGING TO GROUP I-A AND GROUP II-A OF THE PERIODIC TABLE, TO THEREBY DIRECTLY COMBINE SAID CONJUGATED DIENE COMPOUND WITH SAID METALLIC MAGNESIUM WITH THE FURTHER PROVISO THAT SAID CONJUGATED DIENE COMPOUND DOES NOT CONTAIN CONJUGATED DOUBLE BONDS WHICH ARE STABILIZED IN THE RING OF A CYCLIC COMPOUND.