Direct conversion of secondary propargyl alcohols into 1,3-di-arylpropanone <i>via</i> DBU promoted redox isomerization and palladium assisted chemoselective hydrogenation in a single pot operation
作者:Rimpa De、S. Antony Savarimuthu、Shubhadeep Chandra、Mrinal K. Bera
DOI:10.1039/d1nj02972j
日期:——
Palladium(II)acetate is found to be an efficient catalyst for the single-step conversion of secondary propargyl alcohols to 1,3-diarylpropanone derivatives under mild basic conditions. The reaction is believed to proceed via redox isomerisation of secondary propargyl alcohols followed by chemoselective reduction of an enone double bond with formic acid as an adequate hydrogen donor. A large number
发现乙酸钯 ( II ) 是一种有效的催化剂,可在温和的碱性条件下将仲炔醇一步转化为 1,3-二芳基丙酮衍生物。据信,该反应通过仲炔丙醇的氧化还原异构化,然后用甲酸作为适当的氢供体对烯酮双键进行化学选择性还原而进行。大量的 1,3-二芳基丙酮衍生物可以很容易地从毫克级到几克级制备。
Heteropoly Acid-catalyzed Direct Substitution of 2-Propynyl Alcohols with Sulfonamides
作者:J. S. Yadav、B. V. Subba Reddy、T. Srinivasa Rao、B. Bala. M. Krishna、G. G. K. S. Narayana Kumar
DOI:10.1246/cl.2007.1472
日期:2007.12.5
Directsubstitution of the hydroxygroup in 2-propynyl alcohols with sulfonamides has been achieved using 5 mol % of phosphomolybdic acid supported on silica gel (PMA/SiO2) under mild reaction cond...
The invention relates to a series of compounds with particular activity as inhibitors of the serine-threonine kinase AKT. Also provided are pharmaceutical compositions comprising same as well as methods for treating cancer.
The invention relates to a series of compounds with particular activity as inhibitors of the serine-threonine kinase AKT. Also provided are pharmaceutical compositions comprising same as well as methods for treating cancer.
A practical and cost-effective approach to polysubstituted pyrimidine derivatives <i>via</i> DBU mediated redox isomerization of propargyl alcohol and subsequent N–C–N fragment condensation
作者:Rimpa De、Utsav Sengupta、Antony Savarimuthu、Souvik Misra、Jayanta Nanda、Mrinal K. Bera
DOI:10.1039/d2nj00586g
日期:——
A straightforward, efficient yet effortless approach for the synthesis of structurally important triarylated pyrimidine derivatives has been successfully developed using secondary propargyl alcohol and commercially available amidines under mild basic conditions. The reaction is believed to proceed via base-mediated redox isomerization of propargyl alcohol into a chalcone and a subsequent N–C–N fragment