75089-45-1Relevant academic research and scientific papers
Total synthesis of echinopines A and B: Exploiting a bioinspired late-stage intramolecular cyclopropanation
Peixoto, Philippe A.,Richard, Jean-Alexandre,Severin, Rene,Chen, David Y.-K.
supporting information; experimental part, p. 5724 - 5727 (2011/12/15)
Total synthesis of echinopine A and B have been accomplished, based on a strategy that involved two transition-metal-mediated ene-yne cycloisomerizations. A modified Pd-catalyzed enyne cycloisomerization/ intramolecular Diels-Alder cascade rendered a more
A Novel Synthesis of 4H-Chromen-4-ones via Intramolecular Wittig Reaction
Kumar, Pradeep,Bodas, Mandar S.
, p. 3821 - 3823 (2007/10/03)
formula presented The acylphosphoranes formed in a sequential manner from the reaction of the silyl ester of O-acyl(aroyl)salicylic acids and (trimethylsilyl)-methylenetriphenylphosphorane undergo intramolecular Wittig cyclization on the ester carbonyl to afford the 4H-chromen-4-ones in good to excellent yields.
Stabilized and persistent allenylketenes
Huang, Wenwei,Fang, Decai,Temple, Karen,Tidwell, Thomas T.
, p. 2832 - 2838 (2007/10/03)
Photolyses of 2,3-bis(trimethylsilyl)-substituted methylenecyclobutenones 22-26 give essentially quantitative conversion to the allenylketenes 28-32 which have been isolated as long-lived species at room temperature. As predicted by molecular orbital calc
Phenylsilyl Chalcogenides, (Phenylsilyl)amines and Related Phosphonium (Phenylsilyl)methylides
Mitzel, Norbert W.,Schier, Annette,Beruda, Holger,Schmidbaur, Hubert
, p. 1053 - 1060 (2007/10/02)
The synthesis of 1,3-diphenyldisiloxane (1) by hydrolysis of chloro(phenyl)silane is optimized, 1,3-diphenyldisilthiane (2) is made available by the reaction of H2S with PhH2SiCl and triethylamine. 1,3-Diphenyldisilselenane (3) is prepared from K2Se and P
Synthesis and reactions of [1-(trialkylsilyl)alkylidene]triphenylphosphoranes
Bestmann,Bomhard,Dostalek,Pichl,Riemer,Zimmermann
, p. 787 - 792 (2007/10/02)
Alkylidenetriphenylphosphoranes 1 react with trialkyl halosilanes 2 to afford silylated alkylidenephosphoranes 5, which can be converted to acylated alkylidenephosphoranes 8 and 10 by trimethylsilyl carboxylates 6 or carboxylic anhydrides 10. Bis(acylalkylidenephosphoranes) 13-15 are available from 5 and bis(trimethylsilyl) dicarboxylates 12 or cyclic or polymeric anhydrides 16, 17.
NOUVELLE SYNTHESE DE SELS D'ALCADIEN-1,3 YL PHOSPHONIUM
Plenat, Francoise
, p. 4705 - 4708 (2007/10/02)
A new synthetic route to alcadien-1,3 yl phosphonium salts is given.
