55483-93-7Relevant academic research and scientific papers
Animal bone meal (ABM): A novel natural catalyst for thia-michael addition
Riadi, Yassine,Mamouni, Rachid,Abrouki, Younes,Haddad, Mohammadine El,Saffaj, Nabil,Antri, Said El,Routier, Sylvain,Guillaumet, Gerald,Lazar, Said
, p. 269 - 271 (2010)
The preparation and use of Animal Bone Meal (ABM) as natural catalyst is described for C-S bond formation by thia-Michael addition. This new natural heterogeneous method led to β-sulfinyl adducts in very high yields after only a few minutes. Influence of
Highly enantioselective conjugate addition of thioglycolate to chalcones catalyzed by lanthanum: Low catalyst loading and remarkable chiral amplification
Hui, Yonghai,Jiang, Jun,Wang, Wentao,Chen, Weiliang,Cai, Yunfei,Lin, Lili,Liu, Xiaohua,Feng, Xiaoming
supporting information; experimental part, p. 4290 - 4293 (2010/08/19)
(Figure Presented) Ramping it up: The titled reaction has been developed using a chiral N, N′-dioxide-LaIII complex as the catalyst. The reaction proceeded with high yield and enantioselectivity, Remarkably, a high asymmetric amplification was observed, as 98% ee was achieved using 1 mol% L/ La(OTf)3 in which the ee value of L was 2% ee. Tf= trifluoromethanesulfonyl.
Fluorapatite: Efficient catalyst for the Michael addition
Zahouily, Mohamed,Abrouki, Younes,Rayadh, Ahmed,Sebti, Sa?d,Dhimane, Hamid,David, Marc
, p. 2463 - 2465 (2007/10/03)
A Michael addition assisted by fluorapatite in heterogeneous media is described. Reaction between mercaptans and chalcone derivatives was studied at room temperature in methanol as solvent. By-products of usual undesirable reactions in Michael addition su
A natural phosphate and doped-catalyzed Michael addition of mercaptans to α,β-unsaturated carbonyl compounds
Abrouki, Younes,Zahouily, Mohamed,Rayadh, Ahmed,Bahlaouan, Boucha?b,Sebti, Sa?d
, p. 8951 - 8953 (2007/10/03)
The natural phosphate and doped by potassium fluoride catalyzed Michael addition of mercaptans to chalone derivatives with high yields in few minutes and under mild reaction conditions. Products of undesirable side reactions resulting from 1,2-addition, p
Na2CaP2O7, a new catalyst for Michael addition
Zahouily, Mohamed,Abrouki, Younes,Rayadh, Ahmed
, p. 7729 - 7730 (2007/10/03)
The synthetic diphosphate Na2CaP2O7 is a new basic catalyst for Michael addition of mercaptans to chalcone derivatives with high yields in a few minutes and mild reaction conditions. Products of undesirable side reactions
Kinetic study of the cyclisation of the adduct compound of the ethyl mercaptoacetate on the benzylideneacetophenone
Guinchard,Dankar,Mercier,Xicluna,Robert
, p. 103 - 108 (2007/10/03)
The study of the kinetic of cyclisation reaction of the additional compound of the mercaptoacetic ethylester on a benzylideneacetophenone was proposed. With the chromatography a retro-Michael reaction was obtained. The 1H NMR alone permitted to show the order 1 for the kinetic of cyclization and according to the amine used like reaction catalyst, two diastereoisomers could be formed.
Stereochemical studies of Michael-adducts obtained by reaction of the ethyl mercaptoacetate with substituted propenones and of their cyclisation into ethyl 3-hydroxytetrahydrothiophene-2-carboxylates.
Robert, J. F.,Xicluna, A.,Ombetta, J. E.,Alhassan, M.,Mercier, M. F.,et al.
, p. 478 - 485 (2007/10/02)
A conformational study of several Michael-adducts issued from the reaction of ethyl mercaptoacetate with substituted propenones was carried out in order to understand the remarkable stereospecificity of their cyclization into tetrahydrothiophene derivativ
