FURAN BASED RESIN, PROCESS FOR THE PREPARATION THEREOF, AND USE OF THE COMPOUND
申请人:DSM IP Assets B.V.
公开号:EP2222656A1
公开(公告)日:2010-09-01
US9487602B2
申请人:——
公开号:US9487602B2
公开(公告)日:2016-11-08
[EN] FURAN BASED RESIN, PROCESS FOR THE PREPARATION THEREOF, AND USE OF THE COMPOUND<br/>[FR] RÉSINE À BASE DE FURANE, SON PROCÉDÉ DE PRÉPARATION ET UTILISATION DU COMPOSÉ
申请人:DSM IP ASSETS BV
公开号:WO2009077587A1
公开(公告)日:2009-06-25
The present invention relates to the polymeric reaction product of compounds according to Formula (I) and Formula (II) or (III). Formula (I) has the following structure: where R1, R2, R3 and R4 are independently H, OH, optionally substituted C1-12alkyl, optionally substituted C1-12alkenyl, C1-12aldehyde, C3-12acetals, C2-12 ether, and/or C2-12 ester; where optionally at least one of R1, R2, R3 and R4 is H. Formulae (II) and (III) have the following structure: where X is H or C1-4alkyl; Y is OH or OR5 where R5 is C1-12alkyl, C3-12aryl, C4-12aralkyl or C3-12cycloalkyl; and Z is an electron-withdrawing group.
Total synthesis of higher-carbon sugars: Synthesis of methyl 3,4,5-tri-O-acetyl-1,7-di-O-benzyl-α-dl-gluco-Hept-2-ulopyranoside
作者:Osman Achmatowicz、Maria H. Burzyńska
DOI:10.1016/s0008-6215(00)90756-0
日期:1985.8
2-(2-Benzyloxy-1-hydroxyethyl)-5-benzyloxymethylfuran [obtained by the reaction of 2-benzyloxymethylfuran with butyl glyoxylate, reduction of the resulting hydroxyester with lithium aluminium hydride, followed by benzylation of the primary hydroxyl group] was converted into methyl 1,7-di-O-benzyl-3,4-dideoxy-α-and -β-dl-hept-3-en-2-ulopyranosid-5-uloses. Carbonyl-reduction of the uloses and inversion