何良年
个性化签名
- 姓名:何良年
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学术头衔:
博士生导师
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学科领域:
有机化学
- 研究兴趣:
1983年毕业于湖北郧阳师范专科学校化学系,1988年和1993年先后考入华中师范大学、南开大学攻读硕士、博士学位,1996年获理学博士学位。先后师从于张景龄教授、陈茹玉院士、卓仁禧院士。1996年至2003年分别在武汉大学、日本产业技术综合研究所做博士后(NEDO fellow)。1998年入选湖北高等学校跨世纪学术带头人。2003年回国,被聘为南开大学有机化学教授。2011年入选英国皇家化学会Fellow (FRSC),现任Springer "Green Chemistry and Sustainable Technology"主编。主要从事二氧化碳化学、生物质能以及绿色化学领域研究。在Angew Chem Int Ed, Energy Enviroment Sci, ChemSusChem, Green Chem, J Catal, ChemCommun, J Org Chem等刊物上发表学术论文150余篇。撰写中英文专著各一部,英文书籍章节8部,受邀做学术报告50余次。
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2838
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743
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成果数
10
何良年, Hiroyuki Yasuda, Liang-Nian He, Toshikazu Takahashi, Toshiyasu Sakakura*
Applied Catalysis A: General 298 (2006) 177-180,-0001,():
-1年11月30日
Cesium-phosphorous-silicon mixed oxide (Cs-P-Si oxide), a typical acid–base bifunctional catalyst, efficiently catalyzes propylene carbonate synthesis from CO2 and propylene oxide under supercritical conditions (8-10MPa). This catalyst contains no halogens and requires no additional solvents.A portion of the catalyst was eluted into the product solution during catalysis. It was also found that Cs3PO4, one of the species that may be eluted from the Cs-P-Si oxide, is an effective non-halogen homogeneous catalyst.
Cyclic carbonate, Non-halogen, Supercritical carbon dioxide, Cesium-phosphorous-silicon mixed oxide, Cesium phosphate
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何良年, Jie-Sheng Tian a, Jin-Quan Wang a, Jian-Yu Chen b, Jian-Guo Fan a, Fei Cai b, Liang-Nian He a, *
J.-S. Tian et al./Applied Catalysis A: General xxx (2006) xxx-xxx,-0001,():
-1年11月30日
A homogenous binary catalyst system, n-Bu4NBr/n-Bu3N, was found to be active for the synthesis of dimethyl carbonate from styrene oxide (SO), methanol, and supercritical CO2. Under the optimized conditions, the dimethyl carbonate yield could reach 84% at SO conversion of 98%. Several parameters were studied, i.e. catalyst precursors, reaction time and temperature, methanol/epoxide feed ratio in moles, and CO2 pressure. The best compromise for the one-pot synthesis was achieved with an equimolar amount of n-Bu4NBr/n-Bu3N. A possible mechanism for the present n-Bu4NBr/n-Bu3N-catalyzed one-pot synthesis of dimethyl carbonate was proposed.
Supercritical carbon dioxide, Epoxide, Dimethyl carbonate, Methanol, Binary catalyst system (, n-Bu4NBr/, n-Bu3N), , Homogeneous catalysis
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【期刊论文】Hydrosilation of polyfluoroolefin in dense carbon dioxide
何良年, Liang-Nian He, Jun-Chul Choi and Toshiyasu Sakakura*
Tetrahedron Letters 42 (2001) 2169-2171,-0001,():
-1年11月30日
Ruthenium and rhodium phosphine complexes catalyze the hydrosilation of olefins in dense carbon dioxide. The incorporation of polyfluorinated phosphine ligands in the conventional hydrosilation catalysts provides enhanced solubility in dense carbon dioxide resulting in a higher catalytic activity and selectivity; the best result was obtained using RuCl2[P(C6H4-p-CF3)3]3. The reaction is applicable to the synthesis of a fluorous silane coupling agent.
hydrosilation, olefin, carbon dioxide, ruthenium, rhodium.,
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何良年, Liang-Nian He, Hiroyuki Yasuda* and Toshiyasu Sakakura*
Green Chemistry, 2003, 5, 92-94,-0001,():
-1年11月30日
Polyfluoroalkyl phosphonium iodides, Rf3RPI (Rf=C4F9C2H4, C6F13C2H4, C8F17C2H4; R=Me, Rf), catalyzed propylene carbonate synthesis from propylene oxide and carbon dioxide under supercritical CO2 conditions, where propylene carbonate was spontaneously separated out of the supercritical CO2 phase. The Rf3RPI catalyst could be recycled with maintaining a high CO2 pressure and temperature by separating the propylene carbonate from the bottom of the reactor followed by supplying propylene oxide and CO2 to the upper supercritical CO2 phase in which the Rf3RPI remained.
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何良年, Jun-Chul Choi, Liang-Nian He, Hiroyuki Yasuda and Toshiyasu Sakakura*
Green Chemistry, 2002, 4, 230-234,-0001,():
-1年11月30日
Supercritical carbon dioxide is efficiently converted to dimethyl carbonate (DMC) via the reaction with methanol in the presence of a catalytic amount of dialkyltin oxide or its derivatives. The removal of water is the key to accomplishing the high conversion by shifting the equilibrium to dimethyl carbonate. Dehydration is successfully carried out by circulating the reaction mixture through a dehydrating tube packed with molecular sieve 3A. Under the effective dehydration conditions, the DMC yield is almost linearly dependent on the reaction time, catalyst amount, methanol concentration, and CO2 pressure.
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何良年, Ya Du a, De-Lin Kong a, Hai-Ying Wang b, Fei Cai b, Jie-Sheng Tian a, Jin-Quan Wang a, Liang-Nian He a, *
Journal of Molecular Catalysis A: Chemical 241 (2005) 233-237,-0001,():
-1年11月30日
Dibutyltin oxide or dibutyltin dimethoxide was first used as a remarkable selective catalyst for the synthesis of propylene carbonate from propylene glycol and carbon dioxide. The effects of the reaction parameters, such as reaction time, temperature and CO2 pressure on the amount of propylene carbonate were also experimentally studied. Under the optimized conditions, the amount of propylene carbonate was nearly proportional to PG concentration. The use of N, N-dimethylformamide as a co-solvent in this study significantly enhanced the catalytic activity, and the ketals as dehydrating agents greatly improved the yield of PC, which can be limited by the equilibrium. A postulated mechanism for the dibutyltin oxide-catalyzed carboxylation of propylene glycol was also discussed.
Supercritical carbon dioxide, Propylene glycol, Propylene carbonate, Tin compound, Ketal
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何良年, Hiroyuki Yasuda, Liang-Nian He, and Toshiyasu Sakakura
Journal of Catalysis 209, 547-550 (2002),-0001,():
-1年11月30日
Lanthanide oxychloride, especially SmOCl, is an efficient solid catalyst for propylene carbonate synthesis from supercritical CO2 and propylene oxide. The process requires no additional organic solvents and the product is automatically separated out from the CO2 phase.
propylene carbonate, propylene oxide, supercritical carbon dioxide, lanthanide oxychloride.,
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何良年, Hiroyuki Yasuda a, Liang-Nian He a, Toshiyasu Sakakura a, *, Changwen Hu b
Journal of Catalysis 233 (2005) 119-122,-0001,():
-1年11月30日
Tetraalkylammonium salts of transition-metal-substituted polyoxometalates, such as [(n-C7H15)4N]6[α-SiW11O39Co] and [(n-C7H15)4N]6[α-SiW11O39Mn], efficiently catalyze cyclic carbonate synthesis from carbon dioxide and epoxide. The catalytic activity is significantly influenced by the type of transition metal and the countercation (Co2+≈Mn2+>Ni2+>Fe3+»Cu2+; (n-C7H15) 4N+>(n-C4H9)4N+»K+). Co- or Mn-substituted catalysts required neither additional organic solvents nor additives. Thus, polyoxometalates are promising as nonhalogen anionic components of catalysts for cyclic carbonate synthesis.
Propylene carbonate, Carbon dioxide, Propylene oxide, Polyoxometalate
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何良年, Ya Du, a, Jin-Quan Wang, Jian-Yu Chen, Fei Cai, b, Jie-Sheng Tian, De-Lin Konga and Liang-Nian He a, *
Y. Du et al./Tetrahedron Letters xxx (2006) xxx-xxx,-0001,():
-1年11月30日
A PEG-supported quaternary ammonium salt is proved to be an efficient and recyclable homogeneous catalyst for solvent-free synthesis of cyclic carbonates from carbon dioxide and epoxides under supercritical conditions. Supporting Bu4NBr onsoluble polymer PEG6000 enhances the catalytic activity. The workup procedure is straightforward, and the catalyst can be reused over five times with no appreciable loss of catalytic activity and selectivity.
Supported catalyst, Cyclic carbonate, Supercritical CO2, Polyethylene glycol, Homogeneous catalyst recycling.,
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何良年, Ya Du, Fei Cai, De-Lin Kong and Liang-Nian He*
,-0001,():
-1年11月30日
Insoluble ion exchange resins, one type of polystyryl supported catalysts containing an ammonium salt or amino group, and the polar macroporous adsorption resin, are efficient and reusable heterogeneous basic catalysts for the synthesis of propylene carbonate from propylene oxide and CO2 under supercritical CO2 conditions (373K, 8MPa), which requires no additional organic solvents either for the reaction or for the separation of product. Various parameters affecting the reaction were examined. A quantitative yield (>99%) together with excellent selectivity (>99%) was obtained. The purity of product separated directly by filtration from the reaction mixture, reached more than 99.3% without further purification processes. The catalyst can be easily recovered and reused without significant loss of its catalytic activity. The process represents a simple, ecologically safer, cost-effective route to cyclic carbonates with high product quality, as well as easy product recovery and catalyst recycling.
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