54815-20-2Relevant academic research and scientific papers
Nucleophilic Alkoxylations of Unactivated Alkyl Olefins and α-Methyl Styrene by Photoredox Catalysis
Seyfert, Fabienne,Mitha, Mathis,Wagenknecht, Hans-Achim
supporting information, p. 773 - 776 (2021/01/12)
N,N-diisobutylaminophenyl-phenothiazine is a strongly reducing catalyst that allows – for the first time – the photoredox catalytic addition of alcohols to alkyl olefins as non-activated substrates to products with Markovnikov orientation. The irradiation at 365 nm does not require any additional reagent. Using α-methyl styrene as activated substrate we additionally show that this photoredox catalytic method tolerates other functional groups, including allyl, alkynyl, cyanide, and even acid-labile Boc groups within the substrate scope.
Selective synthesis of unsymmetrical ethers from different alcohols catalyzed by sodium bisulfite
Yu, Jun-Lai,Wang, Hui,Zou, Kai-Feng,Zhang, Jia-Rui,Gao, Xiang,Zhang, Dan-Wei,Li, Zhan-Ting
, p. 310 - 315 (2013/01/15)
An efficient method for the preparation of unsymmetrical ethers from alcohols catalyzed by sodium bisulfite is reported. The procedure enables the direct dehydration of primary, secondary, and tertiary benzylic alcohols with aliphatic alcohols in the abse
Chemical equilibria study of the reacting system of the alkyl cumyl ether synthesis from n-alkanols and α-methylstyrene
Verevkin,Heintz
, p. 41 - 46 (2007/10/03)
Tremendous growth was observed in the 1990s in the use of oxygenates based on ethers such as MTBE and TAME. However, there has been a growing concern over the last years due to the contamination of groundwater by MTBE, because of the leaking storage tanks and pipelines. Thus, seeking for an alternative additives remains a significant problem. Further candidates for additives are alkyl cumyl ethers synthesized in the liquid phase over acid-functionalized ion-exchanged resin catalysts from n-alkanols and α-methylstyrene. The chemical equilibrium of the reactive systems n-alkanol + α-methylstyrene ? alkyl cumyl ether (alkyl is ethyl, propyl, and butyl) was investigated in the liquid phase at 300-383 K using a cation exchanger as heterogeneous catalyst. Enthalpies of reactions of alkyl cumyl ether synthesis in the liquid phase were obtained from the temperature dependence of thermodynamic equilibrium constant and agreed well with those reaction enthalpies derived from the values of standard molar enthalpies of formation in the liquid phase of ethyl cumyl ether by combustion calorimetry. The standard molar enthalpies of vaporization of alkyl cumyl ethers were obtained from the temperature dependence of the vapor pressure measured by using the transpiration method.
BiBr3, an efficient catalyst for the benzylation of alcohols: 2-Phenyl- 2-propyl, a new benzyl-type protecting group
Boyer, Bernard,Keramane, El-Mehdi,Roque, Jean-Pierre,Pavia, André A.
, p. 2891 - 2894 (2007/10/03)
The benzylation of aliphatic alcohols with various benzylic alcohols has been achieved in the presence of BiBr3 under mild conditions. 2- Phenylpropan-2-ol proved to be the most efficient and can be considered as a novel protecting group. (C) 2000 Elsevier Science Ltd.
