The present application provides, among other things, compounds and methods for metathesis reactions. In some embodiments, provided compounds promote highly efficient and highly Z-selective metathesis. In some embodiments, provided compounds and methods are particularly useful for producing allyl alcohols. In some embodiments, provided compounds have the structure of formula I. In some embodiments, provided compounds comprise ruthenium, and a ligand bonded to ruthenium through a sulfur atom.

A process to produce 1-octene and 1-decene includes (a) separating a composition containing an oligomer productwhich contains 15 to 80 mol % C.sub.6 olefins, 20 to 80 mol % C.sub.8 olefins, and 5 to 20 mol % C.sub.10+ olefinsinto a first oligomer composition containing C.sub.6 alkanes and at least 85 mol % C.sub.6 olefins (e.g., 1-hexene), a second oligomer composition containing at least 20 mol % C.sub.8 olefins (e.g., 1-octene), and a heavies stream containing C.sub.10+ olefins, then (b) contacting a metathesis catalyst system with the first oligomer composition to form a first composition comprising C.sub.10 linear internal olefins, (c) contacting the C.sub.10 linear internal olefins with a catalytic isomerization catalyst system in the presence of photochemical irradiation to form a second composition comprising 1-decene, and (d) purifying the second composition to isolate a third composition comprising at least 90 mol % 1-decene. Processes to produce 1-hexene and 1-decene also are described, as well as related manufacturing systems and processes to produce higher carbon number normal alpha olefins from lower carbon number normal alpha olefins.

Described herein, in part, are compositions and methods for processing and curing photopolymer composition based on olefin matathesis. The photopolymer composition comprises a latent ruthenium (Ru) complex, an initiator and at least one polymer precursor. A method for preparing a cured photopolymer composition comprises exposing the photopolymer composition to electromagnetic radiation above a threshold energy to activate the initiator and exposing the photopolymer to electromagnetic radiation below said threshold energy, thereby preparing the cured photopolymer composition.

The present invention relates to a process for the preparation of an optically pure (+) or (?) enantiomer of an iminium salt having the formula (I), aid process comprising the following steps: a) a reduction step of an iminium salt having the formula (II), said salt being in the form of a racemic mixture, in order to obtain a compound having the formula (III) in the form of a racemic mixture, b) a step of chiral HPLC separation of the compound of formula (III) in the form of a racemic mixture, for obtaining an optically pure (+) or (?) enantiomer compound having the formula (IV), and c) an oxidation step of the compound of formula (IV) for obtaining the compound of formula (I).

The present invention relates to novel Ruthenium-based complex compounds which represent viable catalysts, in particular for all sorts of metathesis reactions. Such complex compounds can be prepared by a novel, very favorable and cost efficient method which includes the introduction of an alkylidene ligand into the complex by using vinyl sulfides or vinyl ethers.

The invention relates to a method of alkene metathesis. In the method, at least one monoalkene is subjected to ethenolysis in the presence of a diene. The invention also relates to the use of a diene to promote an ethenolysis reaction conducted on a monoalkene.

An olefin metathesis catalyst and method for producing same is provided.

A method for separating a homogeneous catalyst from a solution includes forming a host-guest compound between a first isomer of the catalyst and inclusion compound in the solution and isolating the host-guest compound from the solution. The catalyst may be released from the inclusion compound by converting the first isomer of the catalyst to a second isomer of the catalyst.

This describes homogeneous catalysts that are recoverable from solution by being phase selective and through host-guest interactions. An example of a method includes separating a water soluble N-heterocyclic carbene homogeneous catalyst from a solution by: (a) forming a host-guest compound between the catalyst and an inclusion compound in the solution; and (b) isolating the host-guest compound from the solution.

A method of preparing a 2,6 disubstituted anilines includes, reacting a 2-amino isophthalic acid diester with sufficient Grignard reagent R.sub.2CH.sub.2MgX to form the corresponding diol product, dehydrating the diol product to the corresponding dialkene; and hydrogenating the diol product to form the corresponding aniline. The 2,6 disubstituted anilines can be used to produce N-Heterocyclic Carbenes (NHCs). The NHCs can find application in various fields such as organic synthesis, catalysis and macromolecular chemistry. Palladium catalysts containing the NHCs are also described.