Improved Synthesis of <i>C</i> <sub>2</sub>‐Symmetric 4,4′‐α,ω‐Alkylenedioxy‐<i>bis</i>(3‐methoxybenzaldehydes)
作者:Pepe' S. Maley、Rachel M. Anderson、David E. Lewis
DOI:10.1081/scc-200061549
日期:2005.6.1
Abstract An improved Williamson synthesis of C 2‐symmetric 4,4′‐(α,ω‐alkylenedioxy)‐bis(3‐methoxybenzaldehydes) from vanillin is described. These dialdehydes are often insoluble in cold acetone, which renders their purification especially facile.
摘要描述了从香兰素改进的 C 2 对称 4,4'-(α,ω-亚烷基二氧基)-双 (3-甲氧基苯甲醛) 的威廉姆森合成。这些二醛通常不溶于冷丙酮,这使得它们的纯化特别容易。
Facile and efficient synthesis of the dimers of DC-81 antitumour antibiotics
作者:Ahmed Kamal、N. Venugopal Rao
DOI:10.1016/0040-4039(95)00744-w
日期:1995.6
We report an improved, economical and versatile route to the dimers of DC-81 anti-tumour antibiotics. Particularly, the protection and deprotection steps in its synthesis and in the preparation of its precursors have been avoided. There is a significant improvement in the overall yields.
Multicomponent synthesis of dihydropyridines catalyzed by l-proline
作者:Leila Zare、Mohammad Nikpassand
DOI:10.1016/j.cclet.2010.12.012
日期:2011.5
Abstract Multicomponent synthesis of mono and bis 4-substituted-1,4-dihydropyridines from aldehydes, dimedone and ammonium acetate in the presence of an efficient recyclable catalyst, l -proline, in high yield and short reaction time is reported.
Evaluation of Nano-Fe<sub>3</sub>O<sub>4</sub>as a Green Catalyst for the Synthesis of Mono, bis and tris Diindolyl Methanes
作者:Leila Zare、Mohammad Nikpassand
DOI:10.1155/2012/626572
日期:——
Fast and clean synthesis of mono, bis and tris diindolylmethanes from various aldehydes and indoles in the presence of an efficient reusable catalyst, nano-Fe3O4, in high yield and short reaction time is reported.
Synthesis and photochromism of 1,3-diazabicyclo[3.1.0]hex-3-ene phenol rings
作者:Hamzeh Kiyani、Nosrat O. Mahmoodi、Khalil Tabatabaeian、Mohammad A. Zanjanchi
DOI:10.1016/j.mencom.2009.07.010
日期:2009.7
The facilesynthesis of mono and bis 1,3-diazabicyclo[3,1,0]hex-3-ene derivatives containing phenol ring, which behave as photochromic materials, is reported.