Synthesis and Reactivity Studies of Dicationic Dihydrogen Complexes Bearing Sulfur‐Donor Ligands: A Combined Experimental and Computational Study
作者:Thirumanavelan Gandhi、Subramani Rajkumar、V. Prathyusha、U. Deva Priyakumar
DOI:10.1002/ejic.201201022
日期:2013.3.12
chemical-shift values (1H NMR spectroscopy) of the various dihydrogen complexes bearing different trans ligands. This study qualitatively suggests that the alkyl dithioformate ligands in these trans-dihydrogen complexes show a poor π effect, and it is further supported by density functional theory calculations. The first example of a dihydrogen complex bearing dithioformic acid, trans-[Ru(η2-H2)SC(SH)H}(dppe)2][BF4]2
一系列二氢配合物反式-[Ru(η2-H2)SC(SR)H}(dppe)2][X][BF4] (R = CH3, X = OTf; R = C6H5CH2, X = BPh4; R = H2C=CHCH2, X = BPh4; dppe = Ph2PCH2CH2PPh2) 带有硫供体配体已通过(二硫代甲酸烷基酯)氢化物反式 [Ru(H)SC(SR)H}(dppe)2] 的质子化合成[X] 使用 HBF4·Et2O。H2 和 SC(SR)H 在反式-[Ru(η2-H2)SC(SR)H}(dppe)2][X][BF4] 中的竞争性取代反应已经通过用 CH3CN、CO 和P(OCH3)3。这些导致 SC(SR)H 从金属中心排出,因此表明二硫代甲酸烷基酯配体比 H2 更不稳定。通过比较带有不同反式配体的各种二氢配合物的 H-H 距离和化学位移值(1H NMR 光谱),研究了二硫代甲酸烷基酯配体(硫供体配体)反式与
Identification of Odor-Active Compounds Released from a Damaged Plant of the Asian Skunk Cabbage <i>Symplocarpus renifolius</i>
structure of the sulfur compounds released from the damaged plant parts of the skunk cabbage. Nine of the sulfur compounds were detected in all three of the plant parts analyzed in this study: hydrogensulfide, methanethiol, 1-hexanethiol, methyl dithioformate, 2,4-dithiapentane, dimethyl trisulfide, methional, 2,3,5-trithiahexane, and tris(methylthio)methane. Methyl dithioformate and methylthiomethyl dithioformate
<i>S</i>-Alkyl Dithioformates as 1,3-Dipolarophiles. Generation of C(2)-Unsubstituted Penems
作者:Sylvie Sanchez、John H. Bateson、Peter J. O'Hanlon、Timothy Gallagher
DOI:10.1021/ol048991z
日期:2004.8.1
S-Alkyl dithioformates, generated by a cycloreversion process, react as 1,3-dipolarophiles with beta-lactam-based azomethine ylids to provide, after (net) elimination of MeSH, C(2)-unsubstituted penems. The overall cycloreversion/cycloaddition sequence was accelerated by microwave irradiation.
Serendipitous synthesis of alkyl trimethylsilyldithioformates by trapping of bis(trimethylsilyl)thione with alkanesulfenic acids. Synthesis of bis- and tris(trimethylsilyl)methanethiols.
作者:Eric Block、Mohammad Aslam
DOI:10.1016/s0040-4039(00)95068-8
日期:1985.1
Tris(trimethylsilyl)methanethiol, prepared from tris(trimethylsilyl)methane, can be easily converted into bis(trimethylsilyl)methanethiol and this to bis(trimethylsilyl)methyl alkanethiosulfinate esters; the latter upon heating afford alkyl trimethylsilyldithioformates via bis(trimethylsilyl)thione, which can be trapped with dienes.