Addition of organomagnesium reagents to cyanohydrin--silyl ethers: An efficient and flexible synthesis of unsymmetrically substituted acyloins
作者:Melvyn Gill、Milton J Kiefel、Deborah A Lally
DOI:10.1016/s0040-4039(00)84415-9
日期:1986.1
Acyloins are prepared in high yields reaction between Grignard reagents and -trimethylsilyl ethers of aldehyde cyanohydrins: the method is particularly useful for the preparation of discrete acyloins in which the substituents are unsymmetrically disposed about the α-hydroxyketone moiety.
Compositions and Methods for Fermentation of Biomass
申请人:Parekh Sarad
公开号:US20100268000A1
公开(公告)日:2010-10-21
In one aspect, this invention relates to production of useful fermentation end-products from biomass through simultaneous hydrolysis and fermentation by a microorganism, such as
Clostridium phytofermentans
. The invention also relates to the development of a process for efficient pretreatment and conversion of lignocellulosic biomass to end-products with high conversion efficiency (yield). In another aspect, methods for producing a fermentation end-product by fermenting hexose (C6) and pentose (C5) sugars with a microorganism, such as
Clostridium phytofermentans
are disclosed herein.
Methods, enzymes, recombinant microorganism, and microbial systems are provided for converting polysaccharides, such as those derived from biomass, into suitable monosaccharides or oligosaccharides, as well as for converting suitable monosaccharides or oligosaccharides into commodity chemicals, such as biofuels. Commodity chemicals produced by the methods described herein are also provided. Commodity chemical enriched, refinery-produced petroleum products are also provided, as well as methods for producing the same.
METHODS AND COMPOSITIONS FOR PRODUCING CHEMICAL PRODUCTS FROM C. PHYTOFERMENTANS
申请人:Schmalisch Matthias
公开号:US20110183382A1
公开(公告)日:2011-07-28
This invention provides systems and methods for the production of compounds by
C. phytofermentans. C. phytofermentans
is genetically-engineered for hydrolysis and fermentation of carbonaceous biomass to synthesize compounds of commercial value.
Synthesis of acyloin natural products by Mukaiyama hydration
作者:Michael Ricca、Wei Zhang、Jiaqi Li、Thomas Fellowes、Jonathan M. White、Paul S. Donnelly、Mark A. Rizzacasa
DOI:10.1039/d2ob00651k
日期:——
The acyloin natural products are a family of bioactive compounds isolated from fungi and myxobacteria. The total synthesis of 7 members of the acyloin family was achieved via a HWE reaction followed by Mukaiyama–Isayama hydration, using novel Co(II) and Co(III) Schiff base SALPN complexes as catalysts for the key enone hydration step. Furthermore, we have shown that a mild acyloin rearrangement is