53778-72-6

Upstream product

• 67-56-1 methanol 
• 925669-95-0 2,3-cis-epoxybutane 
• 21490-63-1 2,3-trans-epoxybutane 
• 412037-67-3 2-iodo-3-methoxy-butane 
• 563-63-3 silver(I) acetate 
• 102671-05-6 2-chloro-3-methoxy-butane 

Downstream Products

• 106-99-0 buta-1,3-diene 

Relevant academic research and scientific papers

Novel polymer-supported ruthenium and iron complexes that catalyze the conversion of epoxides into diols or diol mono-ethers: Clean and recyclable catalysts

Polymer-supported metal (Fe or Ru) complexes for epoxide ring opening reactions were successfully prepared by anchoring the bis(2-picolyl)amine ligand onto the polymer poly(chloromethylstyrene-co-divinylbenzene) (PCD); the catalysts showed heterogeneous catalytic activity and easy recyclability in the ring opening reactions of various epoxide substrates with methanol or H 2O at room temperature under mild and neutral conditions. The Royal Society of Chemistry and the Centre National de la Recherche Scientifique.

Structure and heterogeneous catalytic activity of a coordination polymer containing Cu(NO3)2 and Cu(H2O) 22+ units bridged alternatively by btp ligands (btp=2,6-bis(N′-1,2,4-triazolyl)pyridine)

The reaction of Cu(NO3)2 containing NH 4PF6 with btp ligands produced a new polymeric compound 1 containing Cu(H2O)22+ and Cu(NO3)2 units alternatively bridged by btp ligands with H-bonds between copper-bonded water and nitrate oxygen atoms. Crystal Data: M=1465.97, space group P2/n, a=11.6300(3) ?, b=12.8000(4) ?, c=19.2960(6) ?, β=98.6200(19)°, V=2840.03(15) ?3, Z=2, μ=0.926 mm-1, Dc=1.714 Mg/m3, R=0.0629, wR=0.1614. The polymeric compound 1 has shown the heterogeneous catalytic activity for the ring opening of epoxides under mild conditions. This catalyst system appears to be an efficient, mild, and easily recyclable method for the alcoholysis of epoxides. In addition, the heterogeneous catalyst 1 has, surprisingly, shown even better catalytic activity than copper salt system in homogeneous condition.

Synthesis, structure and heterogeneous catalytic activity of a coordination polymer containing tetranuclear Cu(II)-btp units connected by nitrates

Synthesis, structure and heterogenous catalytic activity of a coordination polymer containing tetranuclear Cu(II)-btp units connected by nitrates were studied. Blue block-type crystals were obtained from the direct diffusion technique. With acetate counteranions, a discrete Cu(II) molecule was obtained. This polymer is an effective heterogeneous catalyst for regioselective ring opening of epoxide by methanol.

A novel mononuclear Fe(III) mono(terpyridine) complex having labile solvent ligands and its catalytic activity

A novel Fe mono(terpyridine) complex was successfully prepared by deliberately choosing the polymer surface-anchored terpyridine as a chelating ligand and it showed an excellent catalytic activity with an easy reusability on the ring-opening reaction of various epoxides by alcohol and water under mild and neutral conditions to give stereospecific and regioselective products.

Studies on the Catalytic Oxidation of Alkanes and Alkenes by Titanium Silicates

Titanium containing, aluminum-free ZSM-5 (TS-1) and amorphous TiO2-SiO2 coprecipitate are investigated as catalysts for the selective oxidation of alkanes and alkenes using a variety of oxidants at temperatures below 100 deg C. Comparisons between the activities of TS-1 and the TiO2-SiO2 coprecipitate for alkane oxidation and alkene epoxidation using nonaqueous H2O2 indicate that the absence of water is crucial for the catalytic activity of silica-supported titanium. Due to the hydrophobicity of TS-1, the concentration of water surrounding the titanium is maintained at a low value, and thus TS-1 can be used as an oxidation catalyst with aqueous H2O2 as oxidant. Alkyl hydroperoxides are active as oxidants for alkene epoxidation on the TiO2-SiO2 coprecipitate but not for alkane oxidation reactions on both TS-1 and the TiO2-SiO2 coprecipitate. A plausible explanation for the above results is provided. The presence of stereoscrambling without any "radical clock" rearrangement during alkane oxidation on TS-1 indicates that the radicals formed may have a very short life-time, or their movements are restricted such that no rearrangement can occur. A proposal for the mechanism of alkane oxidation on TS-1 is given and compared to a mechanism suggested for alkene epoxidation on TS-1 and the TiO2-SiO2 coprecipitate.