Palladium-catalyzed cycloaddition of carbon dioxide with methoxyallene |
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| Affiliation: | 1. Department of Chemical and Materials Engineering and Green Technology Research Center, Chang Gung University, Kwei-shan, Taoyuan 333, Taiwan;2. Green Energy and Environment Research Laboratories, Industrial Technology Research Institute (ITRI), Hsin-Chu 310, Taiwan;1. Biotechnology Development Laboratories, Kaneka Corporation, 1-8 Miyamae, Takasago, Hyogo 676-8688, Japan;2. Technology Management Department, QOL Division, Kaneka Corporation, 1-8 Miyamae, Takasago, Hyogo 676-8688, Japan;1. Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India;2. Department of Chemistry, Tulane University, New Orleans, LA 70118, United States;1. Young Researchers and Elite Club, Maragheh Branch, Islamic Azad University, Maragheh, Iran;2. Department of Chemistry, Faculty of Sciences, Golestan University, Gorgan, Iran;3. Department of Animal Biology, School of Natural Sciences, University of Tabriz, Tabriz, Iran;4. Institute of Physics AS CR, v.v.i., Na Slovance 2, 182 21 Prague 8, Czech Republic;5. Joints, Bones and Connective Tissue Research Centre, Golestan University of Medical Science, Gorgan, Iran;1. Department of Chemistry, Wellesley College, Wellesley, MA 02481, USA;2. Department of Biological Sciences, Wellesley College, Wellesley, MA 02481, USA |
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| Abstract: | A palladium catalyst generated from Pd2(dba)3·CHCl3 and nBu2PCH2CH2Py (Py = 2-pyridyl) has effected novel cycloaddition of methoxyallene with CO2 to afford (E)-5-methoxy-2-(methoxy-methylene)-4-methylene-5-pentanolide regio- and stereospecifically, where a methoxy functional group plays an important role. |
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