66016-88-4Relevant academic research and scientific papers
A practical improvement of crystallization-induced asymmetric transformation of allene-1,3-dicarboxylates
Katoh, Takahiro,Noguchi, Chie,Kimura, Hiroyuki,Fujiwara, Toshio,Ichihashi, Shogo,Nishide, Kiyoharu,Kajimoto, Tetsuya,Node, Manabu
, p. 2943 - 2951 (2007/10/03)
Enantiomerically pure allene-1,3-dicarboxylates were easily synthesized by using epimerization-crystallization of dissymmetric allene compounds, which were prepared from acetone-1,3-dicarboxylates and naturally abundant chiral alcohols, that is, (-)- and
A new synthetic method for allene-1,3-dicarboxylates using DMC and a novel tandem cyclization to a pyrrolizidine alkaloid skeleton
Node, Manabu,Fujiwara, Toshio,Ichihashi, Shogo,Nishide, Kiyoharu
, p. 6331 - 6334 (2007/10/03)
A new one-step synthesis of allene-1,3-dicarboxylates from acetone-1,3- dicarboxylates in high yields was developed by the use of DMC as a dehydrating reagent. This process opened a new expeditious mute to a 1- azabicyclo[3.3.0]octane skeleton of pyrrolizidine alkaloids from dimethyl acetone-1,3-dicarboxylate and bis(2-chloroethyl)amine via a Michael addition and a novel tandem cyclization.
THE CHEMISTRY OF STABILIZED 2H-THIOPYRANES
Weissenfels, Manfred,Pulst, Manfred,Greif, Dieter
, p. 17 - 30 (2007/10/02)
2H-Thiopyranes with a side chain in position 2 of the ring and a terminal formyl group are resonance stabilized compounds.They represent solid, coloured substances, both thermal stable and also reactive, especially against several nucleophilic reagents.Th
