6022-10-2Relevant articles and documents
Wet-chemical synthesis of different bismuth telluride nanoparticles using metal organic precursors-single source vs. dual source approach
Bendt, Georg,Weber, Anna,Heimann, Stefan,Assenmacher, Wilfried,Prymak, Oleg,Schulz, Stephan
, p. 14272 - 14280 (2015/08/18)
Thermolysis of the single source precursor (Et2Bi)2Te 1 in DIPB at 80 °C yielded phase-pure Bi4Te3 nanoparticles, while mixtures of Bi4Te3 and elemental Bi were formed at higher temperatures. In contrast, cubic Bi2Te particles were obtained by thermal decomposition of Et2BiTeEt 2 in DIPB. Moreover, a dual source approach (hot injection method) using the reaction of Te(SiEt3)2 and Bi(NMe2)3 was applied for the synthesis of different pure Bi-Te phases including Bi2Te, Bi4Te3 and Bi2Te3, which were characterized by PXRD, REM, TEM and EDX. The influence of reaction temperature, precursor molar ratio and thermolysis conditions on the resulting material phase was verified. Moreover, reactions of alternate bismuth precursors such as Bi(NEt2)3, Bi(NMeEt)3 and BiCl3 with Te(SiEt3)2 were investigated.
Aminosilylation of arynes with aminosilanes: Synthesis of 2-silylaniline derivatives
Yoshida, Hiroto,Minabe, Takashi,Ohshita, Joji,Kunai, Atsutaka
, p. 3454 - 3456 (2007/10/03)
The nitrogen-silicon σ-bond of aminosilanes added across the triple bond of arynes to give varied 2-silylaniline derivatives straightforwardly. The Royal Society of Chemistry 2005.
Direct Electrophilic Silylation of Terminal Alkynes
Andreev, Aleksey A.,Konshin, Valeri V.,Komarov, Nikolai V.,Rubin, Michael,Brouwer, Chad,Gevorgyan, Vladimir
, p. 421 - 424 (2007/10/03)
(Equation presented) A variety of alkynylsilanes were efficiently prepared via direct silylation of terminal alkynes with aminosilanes in the presence of zinc halides. Base- and nucleophile-sensitive functionalities were perfectly tolerated under the abov
REACTION OF THE NITROGEN-CONTAINING HETEROANALOGS OF ACETALS WITH TRIETHYLSILANE
Khlebnikova, T. D.,Mel'nitskii, I. A.,Kiladze, T. K.,Kantor, E. A.,Popov, Yu. N.,Rakhmankulov, D. L.
, p. 1532 - 1537 (2007/10/02)
The reaction of 1,3-oxaazacycloalkanes with triethylsilane in the presence of a nickel catalyst and zinc halides was investigated.The new compounds of the triethylsilyloxy(dialkylamino)alkane type, i.e., products from the chemospecific cleavage of the heterocycle at the C2-O bond, were isolated and characterized.It was established that triethylsilane can cleave the C-N bond in acyclic aminals with the formation of triethyl(dialkylamino)silanes and tertiary amines.
19-Hydroxy-PGI2 compounds
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, (2008/06/13)
Prostacyclin and prostacyclin-type derivatives having a 19-hydroxy feature are disclosed, including processes for preparing them and the appropriate intermediates. The compounds are useful for pharmacological purposes such as inhibition of blood platelate aggregation.
2-Decarboxy-2-hydroxymethyl-19-hydroxy-PG1 analogs
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, (2008/06/13)
Prostaglandin derivatives having a 19,20-didehydro, a 19-hydroxy, or a 19-keto feature are disclosed, including processes for preparing them and the appropriate intermediates. A typical 19-hydroxy compound of this invention is 19-hydroxy-19-methyl-PGF2α, methyl ester, represented by the formula STR1
Bicyclic lactones
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, (2008/06/13)
Process for preparing bicyclic lactone acrylic aldehydes and ketones of the formula STR1 wherein "n" is one or 2, wherein R1, is hydrogen, methyl, or ethyl, and wherein R4 is hydrogen or a blocking group; and those aldehydes, ketones, and intermediates prepared therein. The aldehydes and ketones are useful intermediates in preparing prostaglandins and analogs having pharmacological utility.