34640-76-1Relevant academic research and scientific papers
Ionization of 2-Brexyl Brosylate: An Exo-Like Rate without Symmetrical Bridging
Nickon, Alex,Swartz, D.,Sainsbury, Donald M.,Toth, Bruce R.
, p. 3736 - 3738 (1986)
2-Brexyl brosylate and exo-norbornyl brosylate show similar ionization rates but differ markedly with respect to internal return, secondary isotope effect, and optical activity
Consecutive addition esterification and hydrolysis of cyclic olefins catalyzed by multi-SO3H functionalized multi heteropolyanion-based ionic hybrids undersolvent-free conditions
Zheng, Guocai,Li, Xinzhong
, p. 933 - 941 (2019/03/17)
An efficient protocol for the synthesis of cycloalkyl carboxylates and alcohols from cyclic olefins is described. The cyclic olefins were converted to corresponding target molecules under solvent-free conditions catalyzed by two novel multi-SO3H functionalized multi heteropolyanion-based ionic hybrids through one-pot consecutive addition esterification and hydrolysis reactions. This approach has several advantages, including high yield, simple workup and simple purification.
Preparation method of (methyl)acrylate with bridged ring structure
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Paragraph 0019; 0021; 0022; 0027-0029, (2020/06/16)
The invention relates to a preparation method of (methyl)acrylate with a bridged ring structure. The (methyl)acrylate is synthesized through three-step reaction comprising the following steps: firstly, carrying out direct addition on saturated fatty acid and bridged ring olefin or a derivative thereof; rectifying and purifying, thus removing a byproduct generated by self-polymerization of the bridged ring olefin; then carrying out hydrolysis to obtain corresponding bridged ring alcohol or a derivative thereof; finally, carrying out ester exchange reaction between the (methyl)acrylate and the bridged ring alcohol or the derivative thereof to obtain the (methyl)acrylate with the bridged ring structure. The preparation method provided by the invention is simple, and the steps are easy to operate; a target product is obtained through the three-step reaction and the yield is high; the disadvantages of a rectification process of a direct esterification technology that the requirements are high and the yield is low are overcome; the content of a residual cycloolefin monomer in the product is low; when the preparation method is applied to resin synthesis, the disadvantages that resin becomes yellow and the viscosity is increased can be remarkably relieved.
Addition of alcohols and acids to olefins in presence of zeolite catalyst H-beta
Raskildina, Gulnara Z.,Kazakova, Anna N.,Mikhailova, Natalia N.,Grigor'Eva, Nelly G.,Kutepov, Boris I.,Zlotsky, Simon S.
, p. 811 - 815 (2015/06/30)
By studying the reactions of styrene and norbornene with different alcohols and carbonic acids in the presence of heterogenic catalyst, it was found that the selected zeolite H-Beta is an active and selective catalyst for these reactions. Ethers and esters of norbornene have exo-configuration. It has been established that reaction of norbornene with diols, catalyzing by zeolite Beta, leads to the formation of esters, which have not been found before.
Hydroacetoxylation of olefins with acetic acid genetated in situ from vinyl acetate in the presence of ruthenium complexes
Khusnutdinov,Shchadneva,Khisamova,Dzhemilev
experimental part, p. 155 - 160 (2011/05/03)
Ruthenium complexes catalyze the decomposition of vinyl acetate releasing the acetic acid and its subsequent addition to linear and cyclic olefins.
Stereoselective exo-addition to norbornenes of acetic acid generated from vinyl acetate in the presence of rhodium complexes
Khusnutdinov,Shchadneva,Mukhametshina
experimental part, p. 54 - 58 (2010/06/19)
Rhodium complexes catalyzed decomposition of vinyl acetate with liberation of acetic acid and subsequent stereoselective exo-addition of the latter to norbornene and its derivatives under mild conditions.
Dual behavior of alcohols in iodine-catalyzed esterification under solvent-free reaction conditions
Jereb, Marjan,Vra?i?, Dejan,Zupan, Marko
scheme or table, p. 2347 - 2352 (2009/09/06)
The dual behavior phenomenon of alcohols in iodine-catalyzed esterification under solvent-free reaction conditions (SFRCs) is described; the governing factor is the stability of the carbonium ion generated from the alcohol; high concentration reaction conditions (HCRCs) or dilute solutions are much less suitable. In the case of benzylic alcohols, loss of optical activity was noted, whereas alkyl alcohols furnished a product with retention of stereochemistry.
Iron-catalysed green synthesis of carboxylic esters by the intermolecular addition of carboxylic acids to alkenes
Choi, Jun-Chul,Kohno, Kazufumi,Masuda, Daisuke,Yasuda, Hiroyuki,Sakakura, Toshiyasu
, p. 777 - 779 (2008/09/16)
Iron triflate, in situ-formed from FeCl3 and triflic acid, or FeCl3 and silver triflate efficiently catalyse the intermolecular addition of carboxylic acids to various alkenes to yield carboxylic esters; the reaction is applicable to the synthesis of unstable esters, such as acrylates. The Royal Society of Chemistry.
Cationic iron-catalyzed addition of carboxylic acids to olefins
Komeyama, Kimihiro,Mieno, Yasuhiro,Yukawa, Syotaro,Morimoto, Takayuki,Takaki, Ken
, p. 752 - 753 (2008/02/09)
Cationic iron salts were found to be good catalysts for intraand intermolecular addition of carboxylic acids to olefins, which afforded the corresponding esters in good yields. Copyright
Synthesis of esters from cage-like unsaturated hydrocarbons, carboxylic acid anhydrides, and water
Mamedov,Nabieva,Rasulova
, p. 974 - 977 (2007/10/03)
A convenient method for the preparation of esters was developed on the basis of reaction of cage-like polycyclic olefins with carboxylic acid anhydrides and water. Mixed anhydrides were found to give rise to the corresponding low-molecular acid esters. Among the obtained esters, acetates possess a pleasant odor, and they can be used as components of synthetic fragrant substances.
