351387-10-5

Upstream product

• 107574-36-7 (2E)-hex-2-en-1-yl methyl carbonate 
• 62-53-3 aniline 
• 928-94-9 (Z)-2-hexen-1-ol 
• 928-95-0 (E)-2-Hexen-1-ol 
• 505-57-7 2-hexenal 

Relevant academic research and scientific papers

Effects of catalyst activation and ligand steric properties on the enantioselective allylation of amines and phenoxides

(Chemical Equation Presented) The yields, enantioselectivities, and regioselectivities of the reactions of amines and phenoxides with allylic carbonates in the presence of a metallacyclic iridium catalyst were compared. These data show that both preactiva

BF3·Et2O as a metal-free catalyst for direct reductive amination of aldehydes with amines using formic acid as a reductant

A versatile metal- and base-free direct reductive amination of aldehydes with amines using formic acid as a reductant under the catalysis of inexpensive BF3·Et2O has been developed. A wide range of primary and secondary amines and diversely substituted aldehydes are compatible with this transformation, allowing facile access to various secondary and tertiary amines in high yields with wide functional group tolerance. Moreover, the method is convenient for the late-stage functionalization of bioactive compounds and preparation of commercialized drug molecules and biologically relevant N-heterocycles. The procedure has the advantages of simple operation and workup and easy scale-up, and does not require dry conditions, an inert atmosphere or a water scavenger. Mechanistic studies reveal the involvement of imine activation by BF3and hydride transfer from formic acid.

N-Alkylation of amines with alcohols over nanosized zeolite beta

Direct N-alkylation of amines with alcohols was successfully performed by using nanosized zeolite beta, which showed the highest catalytic activity among other conventional zeolites. This method has several advantages, such as eco-friendliness, moderate to high yields, and simple work-up procedure. The catalyst was successfully recovered and reused without significant loss of activity and only water is produced as co-product. In addition, imines were also efficiently prepared from the tandem reactions of amines with 2-, 3- and 4-nitrobenzyl alcohols using nanosized zeolite beta.

Iridium-catalyzed, asymmetric amination of allylic alcohols activated by lewis acids

The direct, Ir-catalyzed, regio- and enantioselective amination of allylic alcohols with Lewis acid activators to form branched allylic amine products is reported. The reactions of arylamines, benzylic amines, and secondary aliphatic amines in the presence of Nb(OEt)5 as activator occurred with high regioselectivities and high enantioselectivities. These results led to the development of Ir-catalyzed reactions of allylic alcohol with arylamines and BPh3 as activator in catalytic amounts. These reactions are rare examples of enantioselective substitutions of allylic alcohols. They are particularly unusual examples of the substitution of allylic alcohols to generate branched substitution products from monosubstituted allylic alcohols and of enantioselective substitutions of allylic alcohols with amine nucleophiles. Copyright

ENANTIOSELECTIVE PHOSPHORAMIDITE COMPOUNDS AND CATALYSTS

This invention relates to phosphoramidite compounds and catalyst complexes which can be used to provide enantioselective reactions including hydroamination reactions, etherification reactions and conjugate addition reactions and allylic substitution reactions, among others. In a first aspect, the present invention is directed to phosphoramidite and related compounds according to general structure (I), where Z is absent or is a group containing O, N or S, preferably O; R1 and R2 are independently an optionally substituted C1-12 alkyl group, an optionally substituted (CH2)n-aromatic group or (CH2)n-heteroaromatic group, or are linked together to form an optionally substituted aliphatic or (CH2)n-aromatic dianion of a diol, diamine, dithiol, aminoalcohol, aminohiolate or a alcoholthiol group; R3’ and R3 are each independently H, an optionally substituted C1-C12 alkyl group or an optionally substituted (CH2)n-aromatic group with the proviso that R3’ and R3 are not both H, or together R3’ and R3 form an optionally substituted C5-C15 saturated or unsaturated carbocyclic ring; R4 is H, an optionally substituted C1-C12 alkyl group or an optionally substituted (CH2)n-aromatic group; R5 is absent, H, an optionally substituted C1-C12 alkyl group or an optionally substituted (CH2)n-aromatic or (CH2)n-heteroaromatic group; Ra and Ra’ are each independently H or a C1-C3 alkyl group, or Ra and Ra’ together with the carbon to which they are attached form a optionally substituted C5-C15 saturated or unsaturated carbocyclic or heterocyclic ring, or an aromatic or heteroaromatic ring; R6 and R7 are each independently H, an optionally substituted C1-C12 alkyl group or an optionally substituted (CH2)n-aromatic group, with the proviso that R5, R6 and R7 cannot simultaneously be H, and when Ra and Ra’, together with the carbon to which they are attached, form a carbocyclic ring, heterocyclic ring or an aromatic or heteroaromatic ring, R5 is absent or is preferably H; R6 and R7 are preferably H or CH3; and each n is independently 0, 1, 2, 3, 4, 5 or 6 and wherein at least one of the carbon atoms attached to the nitrogen of the phosphoramidite group is a chiral center.

(π-Allyl)palladium complexes bearing diphosphinidenecyclobutene ligands (DPCB): Highly active catalysts for direct conversion of allylic alcohols

The (π-allyl)palladium complex bearing an sp2-hybridized phosphorus ligand (DPCB-OMe: 1,2-bis(4-methoxyphenyl)-3,4-bis[(2,4,6-tri-tert-butylphenyl)phosphinidene]cyclobutene) efficiently catalyzes direct conversion of allylic alcohols in the absence of activating agents of alcohols such as Lewis acids. N-Allylation of aniline proceeds at room temperature to afford monoallylated anilines in 90-97% yields. C-Allylation of active methylene compounds is also successful at 50 °C using a catalytic amount of pyridine as a base, giving monoallylation products in 85-95% yields. The catalytic mechanism involving hydrido- and (π-allyl)palladium intermediates has been proposed on the basis of stoichiometric examinations using model compounds of presumed intermediates. Copyright