441 research outputs found
Komplexchemie perhalogenierter Cyclopentadiene und Alkine
(1,2,3,4,5)Pentachlorferrocen reagiert mit Butyllithium und anschließend mit MeSSMe zu [C5Cl4(SMe)]FeCP (Cp = η5-C5H5) (1). Durch Wiederholung dieser Prozedur lassen sich [C5Cl3(SMe)2]FeCp (2) und [C5Cl2(SMe)3]FeCp (3) erhalten. Eine Kristallstrukturanalyse von 2 zeigt eine 1,3-Anordnung der beiden SMe-Gruppen. Eine Anzahl unsymmetrischer Cymantrenbis- und tristhioether (4–6) wurde auf ähnliche Weise aus [C5Cl4(SR)]Mn(CO)3 bzw. [C5Cl3(SR)2]Mn(CO)3 (R = Me, Ph) dargestellt. Auch Cymantrenyl-Selenoether [C5Cl5−n(SeR)n]Mn(CO)3 (7–10) (R = Me, n = 1, 2, 3; R = Ph, n = 2) konnten erhalten werden
Steric structure of some tert-butyl aryl sulfones
Aryl is in a skewed position (φ{symbol}=73±13‡) in tert-butyl aryl sulfones. There are no significant changes in the conformation of the sulfone molecules when methyl is replaced by the tert-butyl radical. © 1982 Plenum Publishing Corporation
Photochemical, thermal, and thermocatalytic reactions of diphenyldiazomethane with dimethyl thiophosphite
The direct photolysis of diphenyldiazomethane in dimethyl thiophosphite gave the product of P-H insertion. The thermal reaction leads to the N-dimethoxythiophosphorylhydrazone of benzophenone and O,O-dimethyl S-(diphenylmethyl) thiophosphate. Carbenoid P-H insertion occurred in the thermocatalytic decomposition. © 1989 Plenum Publishing Corporation
Thiophene and its homologues as starting compounds for the preparation of aliphatic amino acids
Studies of selenides of thiophene and furan series—V: Mass spectra of some thiophene, furan and selenophene derivatives
ChemInform Abstract: SYNTHESIS OF CHELATES BASED ON DIETHYLAMINOETHYL-SUBSTITUTED MERCAPTOALDIMINES OF THIOPHENE SERIES
ChemInform Abstract: SYNTHESIS AND REACTIONS OF THIOPHENE SERIES SULFIDES. 39. SYNTHESIS AND PHARMACOLOGICAL PROPERTIES OF SOME 2,5-DISUBSTITUTED 3-THIENYLALKYLAMINES
ChemInform Abstract: ACTION OF ALKALI METALS IN LIQUID AMMONIA ON SUBSTITUTED DERIVATIVES OF THIOPHENE. V. PREPARATION OF ALIPHATIC α,β-UNSATURATED THIO ETHERS
ChemInform Abstract: Synthesis and Transformations of Sulfides in the Thiophene Series. Part 41. Synthesis and Some Properties of α-Substituted 3-Thenylidene- o-aminophenols.
ChemInform Abstract: SPALTUNG DES THIOPHENRINGES VON OMEGA-THIENYLALKANSAEUREN MIT NATRIUM IN FLUESSIGEM AMMONIAK ZU ALIPHATISCHEN KETOSAEUREN
- …
