An efficient one-pot route to an aza-bridged bis-phenanthroline macrocyclic compound
摘要:
A facile synthesis of an aza-bridged bis-1,10-phenanthroline macrocycle is described. X-ray crystallographic analysis of the aza-bridged bis-1,10-phenanthroline revealed that the two central hydrogen atoms were localized on two of the opposite central nitrogen atoms similar to those of free base porphyrins. (C) 2000 Elsevier Science Ltd. All rights reserved.
Iron-Catalyzed ortho-Selective Functionalization of Phenols: A Straightforward Strategy towards the 2′-Hydroxyphenyl-1,2-dione Skeleton
作者:Xingwei Guo、Wenjuan Li、Zhiping Li
DOI:10.1002/ejoc.201001180
日期:2010.10
An iron-catalyzed ortho-functionalization of phenols was developed. The reactions of simple phenols with alpha-hydroxy ketones provide a novel and efficient. method to construct 2';-hydroxyphenyl-1,2-dione derivatives.
Bakers' yeast cell-free extract was found to reduce 1-acetoxy-2-alkanones to (S)-1-acetoxy-Z-alkanols in 59 - 88% yield and 95 - >99% ee by use of a catalytic amount of NADPH with glucose as a hydride source and without addition of any enzyme for the cofactor regeneration.
Hickinbottom et al., Journal of the Chemical Society, 1955, p. 1360,1362
作者:Hickinbottom et al.
DOI:——
日期:——
Reaction of lead tetraacetate with unsymmetrical ketones
作者:Sung. Moon、Howard. Bohm
DOI:10.1021/jo00799a023
日期:1972.7.29
The reaction of terminal alkynes with PhI(OAc)2: a convenient procedure for the preparation of α-acyloxy ketones
作者:Dong-Liang Mo、Li-Xin Dai、Xue-Long Hou
DOI:10.1016/j.tetlet.2009.07.081
日期:2009.10
Treatment of terminal alkynes with PhI(OAc)(2) in different acids at 70 degrees C provided the corresponding alpha-acyloxy ketones in good to excellent yields. A plausible mechanism has been proposed based on the experimental results. (C) 2009 Elsevier Ltd. All rights reserved.