[EN] MANUFACTURE OF LACTO-N-TETRAOSE<br/>[FR] FABRICATION DE LACTO-N-TÉTRAOSE
申请人:GLYCOM AS
公开号:WO2012155916A1
公开(公告)日:2012-11-22
The present invention relates to the synthesis of the tetrasaccharide of formula (I) and novel intermediates used in the synthesis.
本发明涉及公式(I)的四糖的合成以及合成中使用的新型中间体。
Photo-organocatalytic synthesis of acetals from aldehydes
作者:Nikolaos F. Nikitas、Ierasia Triandafillidi、Christoforos G. Kokotos
DOI:10.1039/c8gc03605e
日期:——
developed. Utilizing thioxanthenone as the photocatalyst and inexpensive household lamps as the light source, a variety of aromatic and aliphatic aldehydes have been converted into acyclic and cyclic acetals in highyields. The reaction mechanism was extensively studied.
Silver-Catalyzed Olefination of Acetals and Ketals with Diazoesters to β-Alkoxyacrylates
作者:Jiawen Li、Bo Qian、Hanmin Huang
DOI:10.1021/acs.orglett.8b03040
日期:2018.11.16
The first silver-catalyzed reaction of acetals or ketals with diazoesters leading to trisubstituted or tetrasubstituted β-alkoxyacrylates is now reported. A broad range of acetals and ketals bearing different substituents is compatible with this protocol and thus provides an attractive approach for the synthesis of complex β-alkoxyacrylates. The power of this method was further demonstrated by the
Room temperature acetalization of aldehydes with methanol has been carried out using metalorganicframeworks (MOFs) as solid heterogeneous catalysts. Of the MOFs tested, a copper-containing MOF [Cu3(BTC)2] (BTC=1,3,5-benzenetricarboxylate) showed better catalytic activity than an iron-containing MOF [Fe(BTC)] and an aluminium containing MOF [Al2(BDC)3] (BDC=1,4-benzenedicarboxylate). The protocol