全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
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作者:... Paul Brémond , Sylvain R.A. Marque , Maurice Santelli
来源:[J].Tetrahedron(IF 2.803), 2017Elsevier
摘要:Abstract(#br)Sulfur is one of the most necessary biogenic elements in nature that must be assimilated by all organisms; it is an essential macronutrient for living organisms and has multiple roles in plant development. The oxidation of elemental sulfur is a complex process i...
作者:Gérard Audran , Sylvain R.A. Marque , Maurice Santelli
来源:[J].Tetrahedron(IF 2.803), 2018Elsevier
摘要:Abstract(#br)Various aspects of the structure, the reactivity in organic synthesis, in the atmosphere, in environment, in biology of ozone are described. Emphasis is placed on the relation with singlet oxygen and dihydrotrioxide.
作者:... Nicolas Galy , Paul Brémond , Maurice Santelli
来源:[J].Comptes rendus - Chimie(IF 1.92), 2014, Vol.17 (12), pp.1165-1168Elsevier
摘要:Abstract(#br)In the course of the Lewis acid-mediated cycloaddition of 1,8-bis(trimethylsilyl)-2,6-octadiene to bis-ketals, we have observed an unprecedented retro-Claisen condensation from the ketalisation of a 3-hydroxy-2,4-pentadione giving rise to a substituted 2,2,3-tri...
作者:... Sylvain R.A. Marque , Didier Siri , Maurice Santelli
来源:[J].Tetrahedron(IF 2.803), 2015, Vol.71 (38), pp.6920-6927Elsevier
摘要:Abstract(#br)Energetics of several various steps of the metabolisation of arachidonate anion into prostacyclins are been calculated at the B3LYP/6-311++G(3df,3pd) level of theory in ideal gas and in THF or water as solvents.(#br)Results clearly showed that prostaglandin G 2 ...
作者:... Sylvain R.A. Marque , Didier Siri , Maurice Santelli
来源:[J].Tetrahedron(IF 2.803), 2014, Vol.70 (45), pp.8606-8613Elsevier
摘要:Abstract(#br)Polyunsaturated fatty acids like linolenic acid or arachidonic acid upon enzymatic hydroxylation (lipoxygenases) can lead to corresponding hydroperoxides. Their dehydration gave rise to vinyl allene oxides, which cyclized into cyclopentenones, precursors of jasm...
作者:... Sylvain R.A. Marque , Didier Siri , Maurice Santelli
来源:[J].Tetrahedron Letters(IF 2.397), 2016, Vol.57 (16), pp.1743-1749Elsevier
摘要:Abstract(#br)As the well known protonated cyclopropanes’ present calculations confirm the existence of acetylated cyclopropanes, we describe the structure of edge- and corner-acetylated cyclopropanes rising from the energetically favored addition of acetyl cation to cyclopro...
作者:... Mohammed Hamadouche , Didier Siri , Maurice Santelli
来源:[J].Tetrahedron Letters(IF 2.397), 2017, Vol.58 (10), pp.945-948Elsevier
摘要:Abstract(#br)Enamines derived from cyclic ketones react with arenesulfonyl azides and cyanogen azide, mainly via ring contraction, with formation of the corresponding amidines. The mechanism of this efficient rearrangement, which has not been investigated experimentally, was dete...
作者:... Sylvain R.A. Marque , Didier Siri , Maurice Santelli
来源:[J].Tetrahedron(IF 2.803), 2014, Vol.70 (13), pp.2272-2279Elsevier
摘要:Abstract(#br)Concerning the Suzuki–Miyaura coupling reaction, we report detailed theoretical study of thermodynamic data (at the B3PW91/LANL2DZ level with polarization functions added and including dispersion force corrections) concerning each step of the catalytic cycle. In...
作者:... Paul Brémond , Sylvain R.A. Marque , Maurice Santelli
来源:[J].Tetrahedron Letters(IF 2.397), 2016, Vol.57 (50), pp.5703-5706Elsevier
摘要:Abstract(#br)The dehydrodimerization of 2-butanone or 3-pentanone by lead dioxide leads to 3,4-dimethyl-2,5-hexanedione or 4,5-dimethyl-3,6-octanedione in nearly quantitative yield. This very clean and efficient reaction has been studied from mechanistic and stereochemical p...
作者:Florian Berthiol , Henri Doucet , Maurice Santelli
来源:[J].Catalysis Letters(IF 2.244), 2005, Vol.102 (3-4), pp.281-284Springer
摘要:Abstract(#br)The tetraphosphine all- cis -1,2,3,4- tetrakis (diphenylphosphinomethyl)cyclopentane in combination with [Pd(C 3 H 5 )Cl] 2 affords an efficient catalyst for the synthesis of cinnamaldehyde derivatives by reaction of aryl bromides with 3,3-diacetoxypropene. The react...

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