Disclosed is a cyclopropanation process comprising the step of reacting an alkene compound having at least one carbon-carbon double bond with at least one dihaloalkane. The reaction is carried out in the presence of (i) particulate metal Zn, (ii) catalytically effective amount of particulate metal Cu or a salt thereof, (iii) at least one haloalkylsilane, and (iv) at least one solvent.

Disclosed is a cyclopropanation process comprising the step of reacting an alkene compound having at least one carbon-carbon double bond with at least one dihaloalkane. The reaction is carried out in the presence of (i) particulate metal Zn, (ii) catalytically effective amount of particulate metal Cu or a salt thereof, (iii) at least one haloalkylsilane, and (iv) at least one solvent.

The present application relates to the preparation of cyclohexyl-alkyl carbinols, including 1-(cyclohex-3-en-1-yl)-2-methylpropan-1-ol, which possesses a minty aroma that can be described as fresh, invigorating, and menthol-like, and also possesses cooling properties. The use of cyclohexyl-alkyl carbinols as readily accessible and cost effective fragrance, flavor, and cooling ingredients, and potential applications thereof is also described.

The present application relates to the preparation of cyclohexyl-alkyl carbinols, including 1-(cyclohex-3-en-1-yl)-2-methylpropan-1-ol, which possesses a minty aroma that can be described as fresh, invigorating, and menthol-like, and also possesses cooling properties. The use of cyclohexyl-alkyl carbinols as readily accessible and cost effective fragrance, flavor, and cooling ingredients, and potential applications thereof is also described.

Disclosed herein are embodiments of multicyclic compounds and methods of making such compounds. The disclosed methods reduce step-counts in the synthesis of complex targets, while reducing costs and waste streams.

Disclosed herein are embodiments of multicyclic compounds and methods of making such compounds. The disclosed methods reduce step-counts in the synthesis of complex targets, while reducing costs and waste streams.

Processes for preparing 3-substituted phenylalkylamines comprising reacting a phenyl boronic compound with an ?-? unsaturated carbonyl-containing compound via an asymmetric 1,4-addition reaction, followed by reductive alkylation. The processes may be useful in the synthesis of tapentadol.

Processes for preparing 3-substituted phenylalkylamines comprising reacting a phenyl boronic compound with an ?-? unsaturated carbonyl-containing compound via an asymmetric 1,4-addition reaction, followed by reductive alkylation. The processes may be useful in the synthesis of tapentadol.

Processes for preparing 3-substituted phenylalkylamines comprising reacting a phenyl boronic compound with an ?-? unsaturated carbonyl-containing compound via an asymmetric 1,4-addition reaction, followed by reductive alkylation. The processes may be useful in the synthesis of tapentadol.

The present invention relates to compounds of formula (I):

##STR00001##

in which R1 is a hydrogen atom, a phenyl radical, or a straight or branched, saturated or unsaturated hydrocarbon radical having 1 to 8 carbon atoms.