1743-62-0Relevant academic research and scientific papers
Preferred conformations of stabilized phosphorus ylides
Castaneda, Fernando,Terraza, Claudio A.,Bunton, Clifford A.,Gillitt, Nicholas D.,Garland, Maria T.
, p. 1973 - 1985 (2007/10/03)
The stabilized phosphorus ylides, Ph3P=(CO.R′)CO.OR; 1, R=Et, R′=CH2P+Ph3; 2, R=R'′=Me; 3, R=Et, R′=Me; 4, R=Pri; R′=Me; 5, R=But; R′=Me, adopt a near planar conformation in the crystal whi
Synthesis and spectroscopic characterization of 1-13C- and 4-13C-plastoquinone-9
Boers, Rutger B.,Randulfe, Yolanda Pazos,Van Der Haas, Hendrikus N. S.,Van Rossum-Baan, Marleen,Lugtenburg, Johan
, p. 2094 - 2108 (2007/10/03)
This paper presents the synthesis of 1-13C- and 4-13C-plastoquinone-9 and their characterization with NMR spectroscopy and mass spectrometry. The synthetic scheme has been further adapted to introduce 13C-labeled plastoquinones on all individual and on each combination of positions in the quinone ring. Also a two-step scheme is disclosed to prepare unlabeled plastoquinone-9. Wiley-VCH Verlag GmbH, 69451 Weinheim, Germany, 2002.
The Chemistry of Vicinal Tricarbonyls. A New Synthesis of Substituted Furans.
Wasserman, Harry H.,Lee, Gary M.
, p. 9783 - 9786 (2007/10/02)
Enolates of acyl phosphoranylidene carboxylates react with aldehydes to form secondary alcohols which undergo intramolecular addition to the central carbonyl of a vicinal tricarbonyl unit, generated in a separate step.The resulting dihydrofuranols undergo acid-catalyzed dehydration to form 3-hydroxyfuran-2-carboxylates.
The Conversion of Carboxylic Acids to Keto Phosphorane Precursors of 1,2,3-Vicinal Tricarbonyl Compounds
Wasserman, Harry H.,Ennis, David S.,Blum, Charles A.,Rotello, Vincent M.
, p. 6003 - 6006 (2007/10/02)
Acyl phosphoranylidines react with acid chlorides or anhydrides in the presence of bis(trimethylsilyl)acetamide (BSA), or couple directly with carboxylic acids activated by EDCI to give keto phosphoranes 1.
