75101-98-3Relevant articles and documents
Copper-Catalyzed Stereospecific Hydroboration of Internal Allylic Alcohols
Ji, Enhui,Meng, Haiwen,Zheng, Yue,Ramadoss, Velayudham,Wang, Yahui
supporting information, p. 7367 - 7371 (2019/11/22)
An effective Cu-catalyzed stereospecific hydroboration of aliphatic and aromatic 1,1,2-trisubstituted internal allylic alcohols has been reported. This reaction proceeds via a silyl ether transient protection of allylic alcohols and subsequent stereospecific hydroboration. Followed by an oxidative workup, an array of acyclic, cyclic, and heterocyclic 1,3-diols was synthesized in good to excellent yields with good functional group tolerance and excellent diastereomeric ratios (> 20:1).
A general route to α-alkyl (E)-α,β-unsaturated aldehydes
Lahmar, Nour,Aatar, Jamaa,Ayed, Ta?cir Ben,Amri, Hassen,Bellassoued, Moncef
, p. 3018 - 3026 (2007/10/03)
Bis(trimethylsilyl)-tert-butylaldimines 3 react with aldehydes in the presence of zinc bromide at room temperature to give, after hydrolysis, the desired α-alkyl α,β-ethylenic aldehydes in good yield and with very high E stereoselectivity. The reaction was believed to proceed via the α-silyl β-siloxyimines 4.
Tetraalkylammonium and 1,3-dialkylimidazolium salts with fluorinated anions as recoverable phase-transfer catalysts in solid base-promoted cross-aldol condensations
Kryshtal, Galina V.,Zhdankina, Galina M.,Zlotin, Sergei G.
, p. 2822 - 2827 (2007/10/03)
Tetraalkylammonium and 1,3-dialkylimidazolium tetrafluoroborates and hexafluorophosphates were employed for the first time as recoverable phase-transfer catalysts in multiphase reactions of CH-acids, in particular in solid base-pro-moted cross-aldol condensations. The catalysts retained their catalytic activity over several reaction cycles.
