选择性糖基化:通过完全立体选择性硝酮环加成,Tamao-Fleming氧化和选择性α-葡萄糖基化为关键步骤,实现了天然木麻黄的全合成(1)和木麻黄的6 - O -α-葡萄糖苷的首次全合成(2)。两种化合物的生物学分析证明它们分别对葡糖淀粉酶NtMGAM和海藻糖酶Tre37A具有强大的选择性抑制特性,这使它们成为这些酶的最强抑制剂。
选择性糖基化:通过完全立体选择性硝酮环加成,Tamao-Fleming氧化和选择性α-葡萄糖基化为关键步骤,实现了天然木麻黄的全合成(1)和木麻黄的6 - O -α-葡萄糖苷的首次全合成(2)。两种化合物的生物学分析证明它们分别对葡糖淀粉酶NtMGAM和海藻糖酶Tre37A具有强大的选择性抑制特性,这使它们成为这些酶的最强抑制剂。
Palladium-Catalyzed Additions of Terminal Alkynes to Acceptor Alkynes
作者:Barry M. Trost、Mark T. Sorum、Chuen Chan、Gerd Rühter
DOI:10.1021/ja9624937
日期:1997.1.1
The development of addition reactions wherein the product is the simple sum of the reactants plus anything else (only needed catalytically) constitutes an important goal for enhanced synthetic efficiency. The C−H bond of terminalalkynes (the donor alkynes) can be added to either terminalalkynes (self-coupling) or activated internal alkynes (cross-coupling) (the acceptor alkynes) in the presence of
A route to Z-enediynes via Pd catalyzed alkyne additions
作者:Barry M. Trost、Iwao Hachiya、Matthias C. McIntosh
DOI:10.1016/s0040-4039(98)01392-6
日期:1998.9
The combination of a Pd catalyzed mixed addition of a terminal alkyne with an internal alkyne and radical catalyzed E-Z isomerization provides an atom economical route to Z-enediynes. (C) 1998 Elsevier Science Ltd. All rights reserved.
An unusual regioselectivity in the Pd-catalyzed cross coupling of alkynes. A correction
作者:Barry M Trost、Janet L Gunzner、Tatsuro Yasukata
DOI:10.1016/s0040-4039(01)00596-2
日期:2001.6
Palladium catalyzed additions of terminal alkynes to alkynoates can lead from preferential to exclusive C-C bond formation at the alpha -carbon and, in the case of ethyl 3-dimethylphenylsilylpropiolate. complete selectivity for alpha -attack, an unprecedented regioselectivity that requires revision of the earlier assignment of regioselectivity. (C) 2001 Elsevier Science Ltd. All rights reserved.