Some new organotin(IV), aluminium(III)-μ-oxoisopropoxides and their benzoylacetone derivatives
摘要:
The first organotin(IV), alummium(III)-mu-oxoisopropoxides of the type [R3SnOAl(O(i)Pr)2] (R = Me or Ph) have been made by heating of trimethyl- or triphenyl-tin acetate with aluminium isopropoxide. The reactions of these mu-oxoisopropoxides with benzoylacetone in 1:1 and 1:2 molar ratios yielded the compounds of the type [R3SnOAl(O(i)Pr)(bzac)] and [R3SnOAl(bzac)2] (where R = Me or Ph and bzac = deprotonated benzoylacetone), respectively.
Metal hydride reduction of some σ- and π-allyl and benzyl derivatives of mercury and palladium
作者:Maxwell L. Bullpitt、William Kitching
DOI:10.1016/s0022-328x(00)90472-8
日期:1972.12
Br, OCOCH3, by sodium borohydride and trimethyltin hydride has been investigated and under all conditions examined, 1-butene is the sole organic product. Crotylmercuric hydride seems likely to form and then to undergo either intramolecular transfer of hydrogen from mercury to carbon in an SNi′ manner, or SN2′ displacement of mercury by some hydride species leading to 1-butene, or reactions producing
已经研究了硼氢化钠和氢化三甲基锡对2-丁烯基汞(巴豆基汞)体系RHgX的还原,其中X = Cl,Br,OCOCH 3,在所有考察的条件下,1-丁烯是唯一的有机产物。似乎会形成巴豆基汞氢化物,然后以S N i '的方式将氢从汞分子内转移到碳中,或者通过某些氢化物物种导致1-丁烯置换S N 2'汞,或产生巴豆基-羟基的反应。汞柱1或巴豆汞-其通过水或甲醇裂解以再次得到1-丁烯。还原时的π-巴豆基氯化钯只产生反式-2-丁烯,但是在三苯基膦浓度增加的情况下,这会促进烯丙基钯氯化物系统的πσ平衡,因此会形成大量的1-丁烯。
Reactions of cyclopalladated N-nitrosoanilines with SnIV reagents. Crystal structure of the bis cyclopalladated complex cis-Pd{ONN(CH3)(C6H4)}2
作者:Alberto Albinati、Samuel Affolter、Paul S. Pregosin
DOI:10.1016/0022-328x(90)85281-3
日期:1990.9
N(1)-Pd-C(2) = 79.5(2); C(2)-Pd-C(9) = 102.4(2). It is suggested that the formation of a specific coordination sphere, involving, one cyclometallated ligand, one weaklycoordinatedligand, and a monodentate carbon ligand, such as CH3, leads to production of 5.
Palladium-catalyzed trimethylenemethane reaction to form methylenetetrahydrofurans. Aldehyde and ketone substrates and the tin effect
作者:Barry M. Trost、Steven A. King、Thomas Schmidt
DOI:10.1021/ja00197a060
日期:1989.7
Le meilleur cocatalyseur est l'(acetoxy trimethyl) stannane. L'acetate de trimethylsilylmethyl-2 allyle est utilise comme precurseur du trimethylenemethane
Le meilleur cocatalyseur est l'(乙酰氧基三甲基)锡烷。L'acetate de trimethylsilylmethyl-2 allyle est利用三亚甲基甲烷的前体
Palladium Pincer Complex Catalyzed Stannyl and Silyl Transfer to Propargylic Substrates: Synthetic Scope and Mechanism
作者:Johan Kjellgren、Henrik Sundén、Kálmán J. Szabó
DOI:10.1021/ja043951b
日期:2005.2.1
corresponding pincer complex catalyst. DFT modeling studies have shown that the trimethylstannyl functionality is transferred to the propargylic substrate in a single reaction step with high allenyl selectivity. Inspection of the TS structures reveals that the trimethylstannyl group transfer is initiated by the attack of the palladium-tin sigma-bond electrons on the propargylic substrate. This is a novel
Reactions of tri-organotin compounds with ethylene bis(triphenylphosphine)platinum(0)
作者:Gregory Butler、Colin Eaborn、Alan Pidcock
DOI:10.1016/s0022-328x(00)83508-1
日期:1980.2
product from [Pt(C2H4)(PPh3)2] and SnMe3Cl is cis-[PtMe(SnMe2Cl)(PPh3)2] has been obtained from 1H and 13C-1H NMR spectra. Similar insertion of platinum into the SnR bond has been demonstrated for a wide range of compounds SnR3X including Sn2Ph6, but the compound SnMe3N : C(CF3)2 undergoes insertion into the SnN bond. The 31P-1H NMR parameters of the complexes are reported.
从1 H和13 C-获得了另外的证据,表明[Pt(C 2 H 4)(PPh 3)2 ]和SnMe 3 Cl的产物是顺式-[PtMe(SnMe 2 Cl)(PPh 3)2 ]。1 H NMR谱。对于包括Sn 2 Ph 6在内的各种化合物SnR 3 X ,已经证明铂相似地插入SnR键中,但是化合物SnMe 3 N:C(CF 3)2插入到SnN键中。在31报道了配合物的P- 1 H NMR参数。