Design of chiral indium complexes for enantioselective carbon carbon bond formation reactions
Design of chiral indium complexes for enantioselective carbon carbon bond formation reactions
... especially the design of novel chiral indium( III) complexes for catalytic enantioselective carbon- carbon bond formation and their application to the synthesis of bioactive molecules In this part of the ... growth of indium metal chemistry, various indium( III) complexes have gained widespread application as efficient Lewis acid catalysts for carbon- carbon b...
Guanidine and guanidinium salt catalyzed enantioselective phosphorus carbon bond formation reactions 1
... Ph2CH 90 R /S 3 :1 86 :1 5 :1 55 :1 12 :1 54 :1 Scheme 1. 11 Ebetino’s asymmetric Michael addition of phosphinic and aminophosphinic acid An asymmetric Michael addition of phosphinic and aminophosphinic ... Adv Synth Catal 2004, 346, 10 35 10 50 Hiratake, J.; Oda, J., Biosci Biotech Biochem 19 97, 61, 211 – 218 Pietrusiewicz, K M.; Zablocka, M., Chem Rev 19 94, 94, 13 75 14 11...
Guanidine and guanidinium salt catalyzed enantioselective phosphorus carbon bond formation reactions 2
... CH2 Cl2 , -20 o C O 93a 122 H S O N O Ph 124 80% yield, 99% ee OH O OH OH R1 R2 122 MeOC O R2 124 OH H CO2 Me 124 a 92% yield 98% ee OH PhOC OH 114a (10 mol%) CH 2Cl2, -20 oC OH O O OH H CO2 Et ... (99%) 103d : R1=Ph; R 2= CN (97%) 103e : R 1=Ph; R2 =COPh (80%) 102a : R 1=R 2= CN 102b: R1=R2 =CO 2Me 102c: R 1=R 2= COPh 102d : R1=Ph; R 2= CN 102e : R 1=Ph; R2 =COPh O O Ph2 P(O)H TBD Ph Ph...
Guanidine and guanidinium salt catalyzed enantioselective phosphorus carbon bond formation reactions 3
... Chapter 181a 56 30 ; 25 136 b [2-NpCH2] 181b 37 35 ; 15 136 c [3, 5-MeOC6H4CH2] 181c 58 32 ; 20 136 d [3- NO2C6H4CH2] 181d 58 36 ; 14 136 e [Et] 181e 45 38 ; 18 a 136 a [Bn] 136 f [i-Bu] 181f 48 56; 32 donor : ... 1:11 tBu F3 C F3C H N H N Ph Ph NH Ph CF3 CF3 BAr F-4 = B HN 2BAr F-4 Ph F3C CF3 F3 C 148 CF3 Scheme 3. 1 Göbel’s chiral bis(amidinium) salt 148 catalyzed Diels-Alder re...
Guanidine and guanidinium salt catalyzed enantioselective phosphorus carbon bond formation reactions 4
... - 34. 8 IR (KBr) 7 74, 15 04, 3050 cm-1 HRMS (ESI) m/z 44 0.1 348 (M+H+), calc for C28H24ClNP 44 0.1335 The ee of 147 was determined by converting back to 146 using H2O2 4. 6 Protocol for guanidinium salt ... 127.2, 127.3, 127 .4, 127.6, 127.9, 128.0, 129.3, 129.6, 129.7, 130.3, 132.9, 133.0, 133.3, 133 .4, 133.9, 1 34. 0, 1 34. 1, 1 34. 2, 1 34. 3, 1 34. 6, 1 34. 7, 137.8, 139.9, 142...
Tài liệu Design of Feedback Control Systems for Stable Plants with Saturating Actuators ppt
... reason why the control structure with the EG should be used for feedback systems with stable open loop plants Another control structure can be used for systems with open loop unstable plants [13] ... to design control systems with multiple saturations for stable open loop plants The idea is to design a linear control system ignoring the saturations...
Báo cáo khoa học: "THE DESIGN OF THE KERNEL ARCHITECTURE FOR THE EUROTRA* SOFTWARE" pptx
... 1982) The elements of the vocabulary of a control language are names of PSs, and the well-formed strings of the language define just those sequences of PS applications which are allowed The user ... It follows that the generator must provide compilations of these defintions in the language of the kernel machine The implementation of the control generator...
Báo cáo khoa học: "The Design of a Computer Language for Linguistic Information" ppt
... rules that are shared among lexical items, as well as by the declarative nature of the grammar formalism itself, 6The example is merely meant to be indicative of the syntax for and operation of lexical ... decidability of that f{,rmalism [Kaplan and Bresnan, 83] Off-line parsability req.ires that the context-free "skeleton" of the grammar allows no trivial cyclic derivations of...
Báo cáo hóa học: " Research Article System-Platforms-Based SystemC TLM Design of Image Processing Chains for Embedded Applications" potx
... systemC TLM PIM SystemC TLM to PSM SystemC TLM transform TLM SystemC platform C level area/energy consumption estimates Performance/area Energy consumption Pareto front analysis SystemC TLM level SystemC ... platform generation SystemC TLM level with area and energy Platform configuration selected SystemC TLM Platform to VHDL platform PIM to PSM transformation HW/...
Báo cáo hóa học: " Research Article Analysis and Design of Timing Recovery Schemes for DMT Systems over Indoor Power-Line Channels" pdf
... D´ez, E Martos, F J Ca˜ ete, and J T Ene ı n trambasaguas, Analysis of timing recovery schemes for DMT systems over indoor power-line channels,” in Proceedings of the 49th Annual IEEE Global ... performance of a conventional DMT timing recovery scheme designed for LTI channels has been assessed when employed over indoor power lines The two main causes th...
Báo cáo hóa học: " Design of Farthest-Point Masks for Image Halftoning" potx
... versions of the FWMSE, both using a model of the human Design of Farthest-Point Masks for Image Halftoning visual system (HVS) The first version measures the difference between the original image ... j) term is used to suppress checkerboard Design of Farthest-Point Masks for Image Halftoning 1889 0.9 0.8 0.7 cb(i, j) = Figure 1: Example of a pixel forming a local...
guide for design of foundations and shoulders for concrete pavements
... American Concrete Institute 116R-85 Cement and Concrete Terminology 316R-82 504R-77 325.3R-7 Recommendations for Construction of Concrete Pavements and Concrete Bases Guide to Joint Sealants for Concrete ... Standard Method for Non-Repetitive Static Plate Load Tests of Soils and Flexible Pavement Components, for Use in Evaluation and Design of Airport an...
VCM 2012 07 Thiết kế lực kế vòng tám cạnh trong gia công SPIF Design of octagonal rings dynamometer for single point incremental forming
... N, kớch VCM2 012 Ti liu tham kho [1] Joost Duflou, Yasemin Tunckol, Alex Szekeres, Paul Vanherck, A force measuring based strategy for failure prevention in incremental forming, Journal of Materials ... Khớ - Trng i hc bỏch Khoa i hc Quc Gia Thnh ph H Chớ Minh, 2003 [4] R Aerens & P Eyckens & A Van Bael & J R Duflou, Force prediction for single point incremental forming de...
Spectroscopic studies of metal carbonyl complexes for small molecule activation
... SPECTROSCOPIC STUDIES OF METAL CARBONYL COMPLEXES FOR SMALL MOLECULE ACTIVATION KEE JUN WEI (B.Sc (HONS), NUS) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY DEPARTMENT OF CHEMISTRY ... synthesis of other metal complexes Scheme 1.4 Reactions of metal carbonyl complexes Carbonyl groups are also useful probes for the determination of el...
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