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311.
Waghmare Ashish Sharma Vidhika Shinde Pratibha Punde Ashvini Vairale Priti Hase Yogesh Pandharkar Subhash Nair Shruthi Aher Rahul Doiphode Vidya Shah Shruti Rahane Swati Bade Bharat Prasad Mohit Rondiya Sachin Jadkar Sandesh 《Journal of Solid State Electrochemistry》2022,26(1):219-232
Journal of Solid State Electrochemistry - Indium selenide (γ-In2Se3) films were prepared using RF magnetron sputtering. Influence of deposition time on structural, optical, morphological, and... 相似文献
312.
Shana Sudhakaran Prasad G. Shinde Eswar K. Aratikatla Sandeep H. Kaulage Priksha Rana Ratan S. Parit Dattatry S. Kavale Beeran Senthilkumar Benudhar Punji 《化学:亚洲杂志》2022,17(1):e202101208
Nickel-catalyzed enantioselective hydrogenation of enamines leading to the efficient synthesis of 3-R-Boc-amino-4-(2,4,5-trifluorophenyl)butyric esters, the key intermediate of the blockbuster antidiabetic drug (R)-SITAGLIPTIN, is described. The sitagliptin motifs were isolated in more than 99% yield and with 75–92% ee using the earth-abundant nickel catalyst. Upon chiral resolution with (R)- and (S)-1-phenylethylamines, the partially enantioenriched (R)- and (S)-Boc-3-amino-4-(2,4,5-trifluorophenyl)butanoic acids provided >99.5% ee of the crucial sitagliptin intermediate. The asymmetric hydrogenation protocol was scaled up to 10 g with consistency in yield and ee, and has been reproduced in multiple batches. 相似文献
313.
Janhavi J. Shrikhande 《Tetrahedron letters》2008,49(32):4799-4803
N-Benzyloxycarbonylation of amines was carried out in aqueous micellar media. Aliphatic (open and cyclic), aromatic and heteroaromatic amines react with Cbz-Cl to give excellent yields of products. The reactions were carried out in water and at room temperature. 相似文献
314.
Nandkishor N. Karade Sumeet V. Gampawar Jeevan M. Kondre Sandeep V. Shinde 《Tetrahedron letters》2008,49(28):4402-4404
A novel one-pot procedure for the synthesis of 3-carbomethoxy-4-aryl furan-2-(5H)-ones is reported via α-tosyloxylation of enolisable ketones with [hydroxy(tosyloxy)iodo]benzene, followed by treatment with potassium monomethyl malonate and K2CO3. 相似文献
315.
Oxalic acid as a catalyst for efficient synthesis of bis-(indolyl)methanes,and 14-aryl- 14H-dibenzo[a,j]xanthenes in water 总被引:1,自引:1,他引:0
A simple, efficient, and environment benign route was developed for the preparation of bis-(indolyl)methanes and 14-aryl-14H- dibenzo[aj]xanthenes from condensation of various aromatic aldehydes or ketones with indole, and 2-naphthol, respectively, using oxalic acid catalyst in aqueous medium. Use of cheap and easily available catalyst, better yields and simple reaction protocol are the advantages of the present method. 相似文献
316.
Nitumani Das Ratul Paul Rupak Chatterjee Dr. Digambar Balaji Shinde Prof. Zhiping Lai Prof. Asim Bhaumik Dr. John Mondal 《化学:亚洲杂志》2023,18(1):e202200970
Herein, we have designed and synthesized two heteroatom (N, O) rich covalent organic frameworks (COF), PD-COF and TF-COF , respectively, to demonstrate their relative effect on CO2 adsorption capacity and also CO2/N2 selectivity. Compared to the non-fluorinated PD-COF (BET surface area 805 m2 g−1, total pore volume 0.3647 ccg−1), a decrease in BET surface area and also pore volume have been observed for fluorinated TF-COF due to the incorporation of fluorine to the porous framework (BET surface area 451 m2 g−1, total pore volume 0.2978 ccg−1). This fact leads to an enormous decrease in the CO2 adsorption capacity and CO2/N2 selectivity of TF-COF , though it shows stronger affinity towards CO2 with a Qst of 37.76 KJ/mol. The more CO2 adsorption capacity by PD-COF can be attributed to the large specific surface area with considerable amount of micropore volume compared to the TF-COF . Further, PD-COF exhibited CO2/N2 selectivity of 16.8, higher than that of TF-COF (CO2/N2 selectivity 13.4). 相似文献
317.
Santosh A. Jadhav Aniket P. Sarkate Mahesh G. Shioorkar Devanand B. Shinde 《合成通讯》2017,47(18):1661-1667
An eco-friendly, expeditious one-pot multicomponent synthesis of substituted 2-phenyl quinoxaline and 7-bromo-3-(4-ethylphenyl) pyrido[2,3-b]pyrazine 4a–k in water–ethanol from easily available starting materials as acetophenone 1, succinamide 2, aromatic amine 3, in situ-generated α-iodo acetophenone from acetophenone, succinamide and catalyzed by silver iodide in combination with green solvent polyethylene glycol-400 and water (2:1) under microwave irradiation. The newly developed protocol with excellent yield of products in very short time of reaction by avoiding the use of lacrimatic α-chloro and α-bromocarbonyl compounds, volatile, toxic organic hazardous solvents, and reagents is the advantage of this research work. The final products were confirmed by their characterization data such as FTIR, 1H NMR, 13C NMR, Mass, HRMS and were compared with its reported method. 相似文献
318.
Santosh A. Jadhav Mahesh G. Shioorkar Omprakash S. Chavan Aniket P. Sarkate Devanand B. Shinde 《合成通讯》2017,47(4):285-290
An effective, expeditious, environmentally benign one-pot synthesis of 2-phenylimidazo[1,2-a]pyridines and 2-phenylimidazo[1,2-a]quinoline from easily available starting materials as aromatic carbonyl compound, 2-amino pyridine, succinamide, and in situ generated α-iodo acetophenone in combination with green solvent PEG-400 and water (2:1) under microwave irradiation. The newly developed protocol with excellent yield of product in very short time of reaction by avoiding the use of lachrymatric α-chloro and α-bromocarbonyl compounds, volatile, toxic organic and hazardous solvents, reagents is the advantage of this research work. The final products were confirmed by their characterization data such as 1H NMR, 13C NMR, high resolution mass spectrometry (HRMS) and were compared with its reported method. 相似文献
319.
320.
Mane Prasad Shinde Bipin Mundada Pankaj Karale Bhausaheb Burungale Arvind 《Research on Chemical Intermediates》2021,47(5):1743-1758
Research on Chemical Intermediates - In the present protocol, biogenic synthesis of ZnO nanoparticles using an aqueous extract of weed, i.e. Parthenium is efficiently carried out. The proficient... 相似文献