reactions—condensations of heteroatom nucleophiles with carbonyl compounds

... aid, and into Chapter “Additions of Heteroatom Nucleophiles to Carbonyl Compounds and Follow-up Reactions—Condensations of Heteroatom Nucleophiles with Carbonyl Compounds. ” Preface to the 2nd German ... Subsequent Reactions—Condensations of Heteroatom Nucleophiles with Carbonyl Compounds 359 9.1 Additions of Heteroatom Nucleophiles or Hydrocyanic Acid to Carbonyl Compounds ... 9.1.4 Oligomerization of Aldehydes—Polymerization of Formaldehyde Addition of Heteroatom Nucleophiles to Carbonyl Compounds in Combination with Subsequent SN1 Reactions of the Primary Product:...

Ngày tải lên: 02/04/2014, 16:01

... Tongmao: Genetics of Human Blood Group, Chinese Science Publishing, 187, 226 -236 Li Xiaofeng, Chang Chang, Hong Shenxue et al: Association of alleles HLA DRB1, DQA1, DQB1 with SLE in Han populations ... 2001, 18(5), 408 -409 Summary Analysis of HLA DQA1 alleles of jing nationality in central vietnam Objective: To analyse of HLA-DQA1 alleles in Jing nationality of Central Vietnam Methods: Applied ... determine the polymorphism of the HLA-DQA1 alleles of 214 healthy children and yoth, unrelated individuals in Centre of Vietnam Results: 10 HLA-DQA1 alleles were detected, of which DQA1*0104 were...

Ngày tải lên: 25/03/2014, 03:22

... correlation of a decrease in Ka for GTP with the lowering of the concentration of nucleotide substrates, has been reported previously [4] Even though a full description of the mechanism of GTP activation ... displacement of the baseline The peaks observed at each injection time are derived from the heat of dilution of glutamine into the reaction cell (B) The heat generated by hydrolysis of 0.15 lM of glutamine ... absence of nucleotides (Table 1) The rate of CTP synthesis was dramatically inuenced by the presence of GTP, and 20 and 41-fold increases in kcat were obtained with GTP concentrations of 0.1 mM...

Ngày tải lên: 21/02/2014, 15:20

... evidence of the ability of FprA to catalyze the production of NADPO In the present article, we provide the first quantitative description of this reaction, along with a detailed analysis of the ... spectroscopic properties of the product of NADP+ oxidation Fig Hypothetical mechanism of the reductive half-reaction of the catalytic cycle of FprA in the oxidation of NADP+ to yield NADPO The ... determined by the method of Chen et al [19] Known amounts of NADP+ were used as controls, verifying the accuracy of the procedure To isolate NMNO, c 10 nmol of NADPO was treated with lg of phosphodiesterase...

Ngày tải lên: 16/03/2014, 11:20

... with two sequences complementary to the target RNA [8 nt IGS and nt extended guide sequence (EGS)] separated by a nt wobble region The reverse primers were designed with alternative codons, of ... helix with nucleotides in the IGS-wobble region The PCR products were digested with NotI and BamHI, gel extracted (QIAquick gel extraction kit; QIAGEN, Gmbh, Germany), and ligated downstream of ... to the complementary sequence in GA mRNA upstream of the mutation The ribozyme catalyzes the coupled cleavage of mutated mRNA and the ligation of the restorative 3¢ exon to the remaining 5¢ exon...

Ngày tải lên: 23/03/2014, 13:20

... Functionalization of tetrazines with temozolomide –TMZ Indeed the situation of the synthesis of a further group of dienes used in our TMZ-BioShuttle studies is unequally catchier and the synthesis of functionalized ... inside of the cyclobutene ring The presence of a further double bond inside of the cyclohexene ring is not of relevance due to the inactivity of this double bond in the DARinv The anhydride ring of ... Synthesis of tetrazine diene compounds It became evident that especially modified esters or acidic amides should be considered as appropriate tetrazine derivatives because of the reactivity of two carbonyl...

Ngày tải lên: 26/10/2012, 09:39

... 1X Nitơ lỏng (nghiền mẫu nấm) Phenol/ Chlorform/ Isoamyl alcohol (25: 24: 1) Lysis Buffer Chloroform/ Isoamyl alcohol (24: 1) Isopropanol lạnh Ethanol 70% 28  Hóa chất sử dụng điện di Gel agarose ... 2: Thêm ml lysis buffer vào ống nghiệm Trộn đều, ủ ấm 65ºC vòng Bƣớc 3: Thêm vào ml phenol/chloroform/isoamylalcohol lần lƣợt theo tỷ lệ (25: 24: 1) Lắc đều, nhẹ Ly tâm 10 phút với tốc độ 3000 ... phần dịch (3 – ml) cho vào ống nghiệm có dung tích 15 ml khác Bƣớc 5: Thêm vào ống nghiệm ml chloroform/isoamylalcohol (24: 1) Trộn đều, ly tâm với tốc độ 4000 vòng/phút 10 phút Bƣớc 6: Hút lấy...

Ngày tải lên: 17/11/2012, 09:45

... Hữu Kiều DANH MỤC CÁC CHỮ VIẾT TẮT AC : Relative Accuracy (Độ xác tương đối) AOAC : Association of Official Analytical Chemists ATP : Adenosine triphosphat bp : base pair (cặp base) BPW : Buffer ... Committee MR : Methyl Red MYP : Mannitol - Egg York - Polymycin NordVal : Nordic System for Validation of Alternative PCR : Polymerase Chain Reaction SE : Relative Sensitivity (Độ nhạy tương đối) SP...

Ngày tải lên: 16/03/2013, 09:26

... Tuyền Luận văn tốt nghiệp GVHD: PGS.TS Trần Linh Thước DANH MỤC CÁC TỪ VIẾT TẮT AOAC : Assciation of Official Analytical Chemist (Hiệp hội nhà phân tích nhà nước) bp : Base pair - cặp base CEN : ... ngộ độc cho động vật hoang dã, gia súc, gia cầm người Các loài tảo độc chia thành nhóm: + Tảo Dinoflabellates: có mặt 75% trường hợp thủy triều đỏ có 9,5% có độc tính nói chung 1,5% gây độc cho...

Ngày tải lên: 16/03/2013, 09:26

Ngày tải lên: 20/03/2013, 08:34

Ngày tải lên: 24/04/2013, 15:41

... pVideoFrame = cvQueryFrame( pCapture ); if( !pVideoFrame ) { fprintf(stderr, "failed to get a video frame\n"); } // Write the captured video frame as an image file sprintf(filename, "VideoFrame%d.jpg", ... image\n"); o return -1; o } o // Write the image to a file with a different name, o // using a different image format png instead of jpg o if( !cvSaveImage("my_image_copy.png", pInpImg) ) Xử ... #include "highgui.h" int main(int argc, char ** argv) { CvCapture * pCapture = 0; IplImage * pVideoFrame = 0; int i; char filename[50]; Xử lý ảnh o o o o o o o o o o o o o o o o o o o o o o o o...

Ngày tải lên: 26/04/2013, 14:55

Ngày tải lên: 07/06/2013, 01:26

... after I (arrive) Alice and I (wait) at the Activity 2: Complete each of the following sentences with an adverbial clause of time (p 139) had recovered from his sickness/ was ready g came home/ ... at the following pictures and make sentences with the given situations  Free Practice: Make three sentences of your own, using Adverbial Clauses of Time Consolidation: − Give some remarks on ... living left have worked/ have been working In the evenings, I often play chess with my next-door neighbour I (1 play) …………… chess with him ever since I (2 come) …………… to live here ten years ago...

Ngày tải lên: 09/06/2013, 01:26

... Formation of Alkyl Boranes OH Replacement of Boron Anti-Markovnikov Addition of an OH Group Reaction of Carbene with Alkene Synthesis of Bromobutane Generation of Radicals Addition of Radicals ... Addition of Halogens to Alkene Addition of Halogens in the Presence of Water Consider the transition states … Oxymercuration and Mercuration of Alkene Demercuration by Reduction Addition of Borane ... Stabilities of Alkyl Radicals Calculating the Change in H° Addition of Hydrogen to Alkenes Catalytic Hydrogenation of an Alkene Potential Energies of Pentene Isomers Relative Stabilities of Alkenes...

Ngày tải lên: 28/06/2013, 01:25

... useful because of a broad range of application, such as genome mapping and characterization, phenotype mapping, marker assisted selection of plant breeding, additional map-based cloning of important ... (ftp://ftp.ncbi.nih.gov.blast/executables/) 3.1.2.3 Hệ trị CSDL quan hệ Microsoft ACEESS Microsoft Access phần mềm ứng dụng thuộc phần mềm Microsoft Office, đƣợc sử dụng để quản lý liệu (quản lý nhân sự, khách ... toán…).Phần mềm đƣợc bảo vệ phân phân phối hãng Microsoft Phiên Access tùy thuộc vào phiên phần mềm Microsoft Office Để sử dụng phần mềm phải mua quyền Microsoft Mỗi tập tin ACCESS gọi sở liệu Một sở liệu...

Ngày tải lên: 03/09/2013, 10:00

... operated with home-made software The concentration of DMPO-OH was determined by comparing the signal intensity with that of a standard solution of diphenyl-2-picrylhydrazyl The condition of ESR ... 20 µM of aqueous ozone (Fig 3a), although the amount of DMPO-OH reached maximum level within at 40 µM of ozone (Fig 3b) At 60 µM of aqueous ozone, the amount of DMPO-OH decreased gradually with ... reaction of DMPO-OH with OH radical precedes the reaction of DMPO with OH radical, the amount of the spin-adduct, DMPO-OH should decrease gradually In the mixture of 80 ppm humic acid with 60...

Ngày tải lên: 05/09/2013, 08:40

... biodegradability of CAAs regardless of the number of attached chlorine atoms The purposes of this research are to investigate the effect of the number of attached chlorine atoms on the reaction mechanism of ... Finally, BOD value reached 860 mg / L with reduction of 43 % of total carbon content In case of TCAA, the decomposition of products reached 72 % of total carbon content of TCAA in Since biodegradable ... These data were average values of three times experiments The deviation of products was within % of each average value The ratio of BOD / ThOD represents the portion of BOD obtained at each condition...

Ngày tải lên: 05/09/2013, 08:40

... concentrations of the two reactors The maximum nitrogen conversion rate of each reactor at the influent DO of about 0.2 mg/L was set to an anammox activity value of 1.0, and for the other concentrations of ... decreased when DO of high concentration was fed into the reactor of each Fig shows the amounts of nitrite removed (NO2-Nre.) and nitrate produced (NO3-Npro.) based on the amount of ammonium removed ... a nitrogen conversion rate of about 2.9 kg-N/m3/d was maintained with influent ammonium and nitrite concentrations of about 160 and 190 mg-N/L, respectively When DO of mg/L was fed into the reactor,...

Ngày tải lên: 05/09/2013, 10:17