High Yield of Liquid Range Olefins Obtained by Converting <i>i</i>-Propanol over Zeolite H-ZSM-5
作者:Uffe V. Mentzel、Saravanamurugan Shunmugavel、Sarah L. Hruby、Claus H. Christensen、Martin S. Holm
DOI:10.1021/ja907692t
日期:2009.11.25
Methanol, ethanol, and i-propanol were converted under methanol-to-gasoline (MTH)-like conditions (400 degrees C, 1-20 bar) over zeolite H-ZSM-5. For methanol and ethanol, the catalyst lifetimes and conversion capacities are comparable, but when i-propanol is used as the reactant, the catalyst lifetime is increased dramatically. In fact, the total conversion capacity (calculated as the total amount
This invention describes genes, metabolic pathways, microbial strains and methods to produce 2,6-dimethyloctane as an advanced biofuel from renewable feedstocks.
这项发明涉及基因、代谢途径、微生物菌株和生产2,6-二甲基辛烷作为可再生原料的先进生物燃料的方法。
Catalytic Reductive Pinacol-Type Rearrangement of Unactivated 1,2-Diols through a Concerted, Stereoinvertive Mechanism
Opportunities for insiders: A catalytic pinacol-type reductiverearrangement of 1,2-internal diols was developed by the use of a simple boron catalyst and two silanes (see scheme). The reaction occurs through a concerted, stereoinvertive mechanism and is applicable to several substrate scaffolds not usually amenable to pinacol-type reactions, such as aliphatic secondary–secondary diols, without the
“Click” Dendrimers: Synthesis, Redox Sensing of Pd(OAc)<sub>2</sub>, and Remarkable Catalytic Hydrogenation Activity of Precise Pd Nanoparticles Stabilized by 1,2,3-Triazole-Containing Dendrimers
methanol yields Pdnanoparticles (PdNPs) that are stabilized either by several dendrimers (G0, DSN) or by encapsulation inside a dendrimer (G1 and G2: DEN), as confirmed by TEM. Relative to PAMAM-DENs (PAMAM=poly(amidoamine)), the "click" DSNs and DENs show a remarkable efficiency and stability for olefin hydrogenation under ambient conditions of various substrates. The influence of the reductant of PdII