By Joseph J. Bozell (Eds.)
content material: Chemical and fabrics from renewable assets / Joseph J. Bozell --
Polyhydroxyalkanoates: the reply to sustainable polymer creation / Tillman U. Gerngross --
imaginative and prescient for renewable assets / James S. Mclaren --
Synthesis of đ-aminolevulinic acid / Luc Moens --
Levulinate esters from biomass wastes / Edwin S. Olson ... [et al.] --
Carbohydrate diacids: power as advertisement chemical compounds and hydrophobic polyamide precursors / D.E. Kiely --
Levoglucosenone: a chiral development block with a brand new point of view / Zbigniew J. Witczak --
New oligomers and polymers bearing furan moieties / Claire Coutterez ... [et al.] --
Furfural and levoglucosan construction from deciduous wooden and agricultural wasters / Janis Gravitis ... [et al.] --
Pretreatment strategies to extend pyrolytic yield of levoglucosan from herbaceous feedstocks / Robert C. Brown, Desmond Radlein, and Jan Piskorz --
3-Dehydroshikimic acid: a construction block for chemical synthesis from renewable feedstocks / K.M. Draths ... [et al.] --
Synthesis and homes of polymers derived from substituted lactic acids / Mao Yin, Tara L. Simmons, and Gregory L. Baker --
built-in approach for the creation of chemical substances from biologically derived succinic acid / Nhuan Nghiem ... [et al.] --
Use of version compounds to review the reactivity and cross-linking of usual phenolics / Stephen S. Kelley ... [et al.] --
Thermoplastic polyesters from steam exploded wooden / Wolfgang G. Glasser and Rajesh okay. Jain.
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Extra resources for Chemicals and Materials from Renewable Resources
Example text
ACS Symposium Series; American Chemical Society: Washington, DC, 2001. 44 sodium azide that affords azide 15 in quantitative yield. The latter was hydrogenated to DALA over palladium catalysts in aqueous hydrochloric acid. In a more recent report, the sodium azide was replaced by potassium phthalimide to effect a Gabriel-type amination reaction (36). This well established protocol generated DALA after hydrolysis of the intermediate phthalimide in aqueous hydrochloric acid. , we decided to improve the existing pathways for converting this feedstock into DALA.
Copyright 1981 Japan Inst. ) The application of the electrochemical variant of the Clauson-Kaas oxidation allowed the formation of the dihydrodimethoxyfuran 4. Catalytic hydrogénation of this hemiacetal led to a tetrahydrofuran that after oxidation and hydrolysis resulted in the formation of DALA. A similar pathway, shown in Figure 3, is the oxidation of 5-acetamido-methylfurfural (5) with singlet oxygen (17J8). This generates a butenolide (6) that after selective reduction with borohydride, is converted into a furan-2(5H)-one 7.
A similar pathway, shown in Figure 3, is the oxidation of 5-acetamido-methylfurfural (5) with singlet oxygen (17J8). This generates a butenolide (6) that after selective reduction with borohydride, is converted into a furan-2(5H)-one 7. Zinc powder, activated under sonication in acetic acid, can cause ring opening of the butenolide ring. An analogous sequence was patented that applied this photochemical protocol to the phthalimide form of furfural. In a more recent report, ruthenium trichloride was used as an oxidizing agent in the ring opening of the phthalimide of tetrahydrofiirfurylamine(/P,20).