Patent classifications
C07C49/76
ARYL BETA DIKETONES AND THEIR USE AS ODORANTS
The present invention refers to aryl beta diketones of the formula (I)
##STR00001## wherein Y, R.sup.1, R.sup.2 and R.sup.3 have the meaning R.sup.1 is selected from the group consisting of hydrogen, C.sub.1-C.sub.4 alkyl, hydroxyl, methoxy, CF.sub.3 and F; R.sup.2 is selected from the group consisting of methyl and ethyl; R.sup.3 is selected from the group consisting of methyl and ethyl; and Y is a bivalent residue selected from the group consisting of C(O); CH.sub.2CH.sub.2C(O); CR.sup.IR.sup.IIC(O), wherein R.sup.I and R.sup.II are independently selected from hydrogen and methyl; and CHR.sup.IIICHR.sup.IVC(O), wherein R.sup.III and R.sup.IV are independently selected from hydrogen and methyl with the proviso, that R.sup.IIIR.sup.IV are hydrogen or either R.sup.III or R.sup.IV is methyl. The invention further refers to fragrance compositions and fragranced articles comprising them.
Methods of acylation with an ionic liquid catalyzing medium
Described herein are methods of acylating an aryl substrate comprising combining a substituted aryl substrate with an acylating agent in the presence of a catalyzing medium, thereby acylating the substituted aryl substrate in the para position, wherein the catalyzing medium is an ionic liquid comprising at least one cation and at least one metal halide anion.
Methods of acylation with an ionic liquid catalyzing medium
Described herein are methods of acylating an aryl substrate comprising combining a substituted aryl substrate with an acylating agent in the presence of a catalyzing medium, thereby acylating the substituted aryl substrate in the para position, wherein the catalyzing medium is an ionic liquid comprising at least one cation and at least one metal halide anion.
SYNTHESIS OF HYPERVALENT IODINE REAGENTS WITH DIOXYGEN
Methods of synthesis of hypervalent iodine reagents and methods for oxidation of organic compounds are disclosed.
SYNTHESIS OF HYPERVALENT IODINE REAGENTS WITH DIOXYGEN
Methods of synthesis of hypervalent iodine reagents and methods for oxidation of organic compounds are disclosed.
METHOD OF PRODUCING ORGANIC COMPOUND
A method of producing an organic compound, which contains a step of performing a deodorization step using a flow reaction in a flow passage to remove, from a reaction liquid, a malodorous material generated or remaining in a reaction step,
wherein the organic compound is an industrially useful compound.
METHOD OF PRODUCING ORGANIC COMPOUND
A method of producing an organic compound, which contains a step of performing a deodorization step using a flow reaction in a flow passage to remove, from a reaction liquid, a malodorous material generated or remaining in a reaction step,
wherein the organic compound is an industrially useful compound.
PROCESS FOR PREPARING ACYL DERIVATIVES
The present invention relates to a process for preparing aromatic acyl derivatives of formula (I) using methanesulfonic acid. The invention further relates to methods for preparing biological active ingredients. such as paracetamol.
PROCESS FOR PREPARING ACYL DERIVATIVES
The present invention relates to a process for preparing aromatic acyl derivatives of formula (I) using methanesulfonic acid. The invention further relates to methods for preparing biological active ingredients. such as paracetamol.
Process for the preparation of a phenylindan compound
The present invention refers to a process for producing 5-[4-(2-hydroxy-2-methyl)-1-oxo-prop-1-yl]-3-[4-(2-hydroxy-2-methyl)-1-oxo-prop-1-yl-phenyl]-2,3-dihydro-1,1,3-trimethyl-1H-indene (dimer isomer 5) that comprises the synthesis from cumene and dimerization of 2-methyl-1-(4-(prop-1-en-2-yl)phenyl)propan-1-one in the presence of acid catalysts.