The Experts below are selected from a list of 125598 Experts worldwide ranked by ideXlab platform
Mitsuo Komatsu - One of the best experts on this subject based on the ideXlab platform.
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Ring opening and expansion of aziridines in a silica-water Reaction Medium.
The Journal of organic chemistry, 2006Co-Authors: Satoshi Minakata, Takahiro Hotta, Yoji Oderaotoshi, Mitsuo KomatsuAbstract:Ring-opening Reactions of N-tosylaziridines with water-soluble nucleophiles proceeded in a silica−water Reaction Medium. The system is applicable to a ring expansion of an aziridine with potassium thiocyanate, leading to a thiazolidine derivative.
Takahide Fukuyama - One of the best experts on this subject based on the ideXlab platform.
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Thermal Retro-Aldol ReactionUsing Fluorous Ether F-626 as a Reaction Medium
Synlett, 2010Co-Authors: Takahide Fukuyama, Takuji Kawamoto, Takahiro Okamura, Aurelien Denichoux, Ilhyong RyuAbstract:A high-boiling, fluorous-organic hybrid ether, F-626, was tested for use in thermal retro-aldol Reactions and found to be an excellent Reaction Medium in view of the ease of separation from the product by fluorous/organic biphasic treatment. The recovered F-626 can be readily reused for subsequent runs.
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bmim ntf2 a low viscosity ionic liquid is a viable Reaction Medium for pd catalyzed cross coupling Reactions
Synlett, 2004Co-Authors: Shifang Liu, Takahide Fukuyama, Masaaki Sato, Ilhyong RyuAbstract:A low viscosity ionic liquid [bmim]NTf 2 was successfully used as a Reaction Medium in Pd-catalyzed Mizoroki-Heck, Suzuki-Miyaura and Stille coupling Reactions. The yields are good to high, and comparable to those reported previously for high viscosity ionic liquids, such as [bmim]PF 6 and [bmim]BF 4 . The products are readily separated and a Reaction Medium containing the Pd-carbene catalyst was successfully recycled.
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continuous microflow synthesis of butyl cinnamate by a mizoroki heck Reaction using a low viscosity ionic liquid as the recycling Reaction Medium
Organic Process Research & Development, 2004Co-Authors: Takahide Fukuyama, Masaaki SatoAbstract:A continuous microflow system was developed with efficient catalyst recycling for a Mizoroki−Heck Reaction of iodobenzene with butyl acrylate, using a low-viscosity ionic liquid ([bmim]NTf2) as the Reaction Medium. Using a CPC CYTOS Lab System as the microReaction apparatus, in combination with an originally developed microextraction/catalyst recycling system, the Reaction Medium, which contained Pd catalyst could be continuously recycled to provide a total of 115.3 g (80%, 10 g/h) of the desired product.
Ilhyong Ryu - One of the best experts on this subject based on the ideXlab platform.
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Thermal Retro-Aldol ReactionUsing Fluorous Ether F-626 as a Reaction Medium
Synlett, 2010Co-Authors: Takahide Fukuyama, Takuji Kawamoto, Takahiro Okamura, Aurelien Denichoux, Ilhyong RyuAbstract:A high-boiling, fluorous-organic hybrid ether, F-626, was tested for use in thermal retro-aldol Reactions and found to be an excellent Reaction Medium in view of the ease of separation from the product by fluorous/organic biphasic treatment. The recovered F-626 can be readily reused for subsequent runs.
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bmim ntf2 a low viscosity ionic liquid is a viable Reaction Medium for pd catalyzed cross coupling Reactions
Synlett, 2004Co-Authors: Shifang Liu, Takahide Fukuyama, Masaaki Sato, Ilhyong RyuAbstract:A low viscosity ionic liquid [bmim]NTf 2 was successfully used as a Reaction Medium in Pd-catalyzed Mizoroki-Heck, Suzuki-Miyaura and Stille coupling Reactions. The yields are good to high, and comparable to those reported previously for high viscosity ionic liquids, such as [bmim]PF 6 and [bmim]BF 4 . The products are readily separated and a Reaction Medium containing the Pd-carbene catalyst was successfully recycled.
Walter Leitner - One of the best experts on this subject based on the ideXlab platform.
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Supercritical carbon dioxide as a green Reaction Medium for catalysis.
Accounts of chemical research, 2002Co-Authors: Walter LeitnerAbstract:Carbon dioxide in its liquid or supercritical state (scCO2) has a prodigious potential as an environmentally benign Reaction Medium for sustainable chemical synthesis. Since the mid-1990s, rapidly ...
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supercritical carbon dioxide as a green Reaction Medium for catalysis
Accounts of Chemical Research, 2002Co-Authors: Walter LeitnerAbstract:Carbon dioxide in its liquid or supercritical state (scCO2) has a prodigious potential as an environmentally benign Reaction Medium for sustainable chemical synthesis. Since the mid-1990s, rapidly increasing research efforts have shown that scCO2 can replace conventional and potentially hazardous solvents in a wide range of processes. There is also increasing evidence that the application of scCO2 can broaden the scope of catalytic synthetic methodologies. On the basis of the experience in our laboratories, this report analyzes the impact of scCO2 on green organometallic catalysis.
Ramesh Jayabalan - One of the best experts on this subject based on the ideXlab platform.
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Sea Water as a Reaction Medium for Bioethanol Production
Microbial Biotechnology, 2018Co-Authors: Dash Indira, Baskar Das, Padmanabhan Balasubramanian, Ramesh JayabalanAbstract:Lignocellulosic biorefineries are expected to combat the problems of depletion of fossil resources by large-scale production of chemicals and biofuels in future. Research studies in the past two decades have resulted in the systems for the production of bio-based novel products with improved ecological footprints. Among other challenges, the large scale operations would result in the huge consumption of fresh water (1.9–5.9 m3 water per m3 of biofuel) which will, in turn, question the sustainability of biorefineries. Fresh water shortage which already exists in many parts of our overpopulated planet has led to more uncertainties to biorefinery industries. Hence, some enzymatic and chemocatalytic applications using sea water as a Reaction Medium for large-scale biorefineries have been reported by several research groups, which emphasize the use of nonpotable water resources of coastal regions for locally available biomass. Many of those reports concluded that the use of such nonpotable water system is highly promising and hence the opportunities at the interface between biology and chemistry are predictable for holistic innovation and further research. The recent National Water Policy of India strongly advocated the implementation of new technology to minimize the fresh water consumption in industries. This critical situation warrants the design and development of economically, environmentally and socially sustainable practices for accomplishing sustainability in the global fine and speciality chemicals industry. The chapter has been planned to review the basics and research studies conducted to use the sea water as a Reaction Medium in bioethanol industries to reduce the usage of fresh water.
