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:... Valérie Launay , Jean-Luc Parrain , Jean-Paul Quintard
来源:[J].Tetrahedron Letters(IF 2.397), 1995, Vol.36 (3), pp.389-392Elsevier
摘要:Abstract(#br)C 5 -branched vinyltin acetals 1 and 2 obtained by stannylmetallation of homopropargyl acetals with Bu 3 SnMgMe in the presence of cuprous cyanide have been proved to be efficient storable precursors for the synthesis of terpenoids.
作者:... Michaël Paris , Gilles Montavon , Jean-Paul Quintard
来源:[J].Tetrahedron Letters(IF 2.397), 2007, Vol.48 (10), pp.1781-1785Elsevier
摘要:Abstract(#br)The synthesis of two new vinyltin reagents grafted on an insoluble macroporous polymer is reported. These reagents were used in the palladium-catalyzed Stille cross-coupling reaction with aryl halides. In all reactions, the conversion of the starting aryl halide is h...
作者:... Erwan Le Grognec , Isabelle Beaudet , Jean-Paul Quintard
来源:[J].Tetrahedron Letters(IF 2.397), 2010, Vol.51 (24), pp.3226-3228Elsevier
摘要:Abstract(#br)An efficient and scalable synthesis of N -(benzyloxycarbonyl)- and N -(methyloxycarbonyl)-( S )-vinylglycinol has been reported starting from the commercially available ( l )-methionine. The scale-up preparation consisted of 5 steps and delivered up to 50 g of t...
作者:Jean-Paul Quintard , Thierry Besson
来源:[J].Tetrahedron(IF 2.803), 2009, Vol.65 (45), pp.9180-9187Elsevier
摘要:Abstract(#br)An efficient and reproducible synthesis of various α-ethoxycarbamates is described via a microwave heating mode. Compared to the thermal process, the microwave dielectric heating induces a dramatic reduction of the reaction time and the improvement of the yields...
作者:... Erwan Le Grognec , Isabelle Beaudet , Jean-Paul Quintard
来源:[J].Journal of Organometallic Chemistry(IF 2), 2005, Vol.691 (8), pp.1488-1497Elsevier
摘要:Abstract(#br)Reactions of 2-tributylstannyloxazolidines 2a – d ( cis or trans ), derived from ( R )-phenylglycinol protected as N -carbamate, with lithium diorganocuprates in presence of boron trifluoride in diethyl ether provide the corresponding functionalized tributylstan...
作者:... Errol Blart , Mickaël Destouches , Jean-Paul Quintard
来源:[J].Journal of Organometallic Chemistry(IF 2), 1998, Vol.567 (1), pp.21-23Elsevier
摘要:Abstract(#br)γ -Aminoallyltins were obtained by reacting RCuCNMgCl/BF 3 ·Et 2 O with aminoacetals derived from β -tributylstannylacrolein. The control of the stereochemistry of the double bond and of the absolute configuration of the newly created allylic carbon centre was p...
作者:... Erwan Le Grognec , Loı̈c Toupet , Jean-Paul Quintard
来源:[J].Tetrahedron Letters(IF 2.397), 2003, Vol.45 (4), pp.761-764Elsevier
摘要:Abstract(#br)The stereochemistry of the allylstannation of acyliminium intermediates has been examined for γ-alkoxyallyltins and γ-silyloxyallyltributyltins. In the latter case, the reaction has been shown to afford cleanly the syn adduct. Its subsequent ring-closing metathe...
作者:... Michaël Paris , Jean-Paul Quintard , Françoise Zammattio
来源:[J].Tetrahedron(IF 2.803), 2009, Vol.65 (20), pp.3953-3960Elsevier
摘要:Abstract(#br)The synthesis of the γ-trimethylsilyldibutylallylstannane grafted on an insoluble macroporous polymer is reported. This bimetallic reagent was treated with aldehydes in the presence of indium trichloride to afford in good yields both symmetrical and unsymmetrica...
作者:... Sandrine Watrelot-Bourdeau , Nicolas Cornet , Jean-Paul Quintard
来源:[J].Journal of Organometallic Chemistry(IF 2), 2004, Vol.690 (3), pp.659-673Elsevier
摘要:Abstract(#br)α-Substituted γ-alkoxyallylstannanes were obtained from β-tributylstannyl acrolein acetals when reacted with lower order magnesium cyanocuprates in the presence of boron trifluoride at low temperature. In the case of n -alkylcyanocuprates an anti S N 2′ sub...
作者:Florian Fliegel , Isabelle Beaudet , Jean-Paul Quintard
来源:[J].Journal of Organometallic Chemistry(IF 2), 2001, Vol.624 (1), pp.383-387Elsevier
摘要:Abstract(#br)Benzyloxyallyltributyltins were obtained in 50–80% yield by S N 2′ reaction of alkyl-cyanocuprates with 3,3-dibenzyloxy-1-tributylstannylprop-1-ene in the presence of boron trifluoride. They reacted with cyclohexylidene glyceraldehyde in the presence of differen...

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