摘要:
The present invention relates to cyclohexanes having carboxylate derivatives at the 1 and 4, and optionally the 2, position. The invention also relates to processes for preparing such compounds wherein a portion of the starting materials utililzed is derived from renewable resources.
摘要:
The present invention relates to polyesters prepared from benzene, cyclohexene and cyclohexane compounds having carboxylic acid groups at the 1 and 4, and optionally the 2, positions, such as terephthalic acid or dimethyl terephthalates, and alkylene glycols, such ethylene glycol or 1,4-butane diol. The invention also relates to processes for preparing such polyesters. The invention also relates to such polyesters derived from starting materials derived from renewable resources.
摘要:
The present invention provides improved process for the sulfonation of hydroxyaromatics amenable to direct isolation of the sulfonylated hydroxyaromatics in their free-acid forms. The process allows for the recyclization of sulfuric acid and minimizes waste. The starting materials are from a renewal resource, e.g., biomass, and contain detectable 14C up to a 14C content of 0.0000000001% (one part per trillion). The products made include sulfonated catechol, disulfonated pyrogallol and sulfonated protocatechuic acid.
摘要:
The present invention relates to novel substituted and unsubstituted terephthalic acid and carboxylate derivatives and products prepared therefrom having a significant renewable content. The invention also relates to processes for preparing substituted and unsubstituted terephthalic and carboxylate derivatives thereof wherein a portion of the starting materials utilized is derived from renewable resources. The invention also relates to novel cyclohexene based intermediates prepared in these processes and to conversion of these intermediates to substituted and unsubstituted cyclohexane-1,4-dicarboxylates and carboxylate derivatives thereof and novel forms of the resulting products having renewable content. The invention also relates to products prepared from substituted and unsubstituted terephthalic acid and carboxylate derivatives thereof derived from starting materials derived from renewable resources.
摘要:
The present invention relates to cyclohexenes having carboxylate derivatives at the 1 and 4, and optionally the 2, position. The invention also relates to processes for preparing such compounds wherein a portion of the starting materials utilized is derived from renewable resources.
摘要:
The present invention relates to the isomerization of cis,cis and/or cis,trans muconic acid or esters thereof to trans,trans muconic acid or esters thereof and to the esterification of such muconic acids.