3739-97-7Relevant articles and documents
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
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
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.