Glucosinolate chemistry. First synthesis of glucosinolates bearing an external thio-function
作者:M Mavratzotis、V Dourtoglou、C Lorin、P Rollin
DOI:10.1016/0040-4039(96)01214-2
日期:1996.8
A general strategy was developed to synthesize ω-methylthioalkyl glucosinolates through a coupling reaction between 1-thio-β-D-glucopyranose and a hydroximoyl halide obtained from the corresponding nitroalkyl methylsulfide precursor.
Structure, Synthesis, and Properties of Some Persubstituted 1,2-Dintroethanes. In Quest of Nitrocyclopropyl-Anion Derivatives
作者:Yasushi Kai、Paul Knochel、Stefan Kwiatkowski、Jack D. Dunitz、Jean F. M. Oth、Dieter Seebach、Hans-Otto Kalinowski
DOI:10.1002/hlca.19820650114
日期:1982.2.3
reveal striking structural differences between the openchain and the cyclic derivatives (Fig. 4–6): the central C, C-bond is long in 1 (1.575 Å), short in 2 (1.479 Å); the C, N-bonds are long in 1 (1.549 Å), short in 2 (1.488 Å); the orientation of the nitro groups is bisected in 2 and perpendicular in 1. The crystal structure of the nitro-nitroso compound 3 is isomorphous with that of the dinitro compound
Bulk, Dense, Nanocrystalline Yttrium Aluminum Garnet by Consolidation of Amorphous Powders at Low Temperatures and High Pressures
作者:Samrat Choudhury、Ashutosh S. Gandhi、Vikram Jayaram
DOI:10.1111/j.1151-2916.2003.tb00007.x
日期:2003.2
5\%\hspace2mm}Y_2O_3$ powders, prepared using spray pyrolysis followed by partial or complete thermal decomposition, were hot-pressed at $315^o–640^o\hspace2mm}C$ and 500 or 750 MPa uniaxial pressure. Hot pressing of fully decomposed amorphous powder at $450^o-640^o\hspace2mm}C$ at pressures up to 750 MPa led to densification (up to 96%) as well as nanocrystallization of yttriumaluminumgarnet (YAG). When the
Visible Light-Induced Oxidative Chlorination of Alkyl sp<sup>3</sup> C–H Bonds with NaCl/Oxone at Room Temperature
作者:Mengdi Zhao、Wenjun Lu
DOI:10.1021/acs.orglett.7b02153
日期:2017.9.1
light-induced monochlorination of cyclohexane with sodium chloride (5:1) has been successfully accomplished to afford chlorocyclohexane in excellent yield by using Oxone as the oxidant in H2O/CF3CH2OH at room temperature. Other secondary and primary alkyl sp3 C–H bonds of cycloalkanes and functional branch/linear alkanes can also be chlorinated, respectively, under similar conditions. The selection of
A general pathway was devised to synthesize ω-methylsulfanylalkyl glucosinolates, which represent an important class of structurally homogeneous plant secondary metabolites. The required thiofunctionalized hydroximoyl chlorides were obtained from the corresponding α,ω-nitroalkyl methylsulfide precursors, involving as the key-step, a nitronate chlorination strategy. A coupling reaction with 1-thio-