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Advanced Synthesis and Catalysis, 2006 Unless noted, class is 9:00-10:30, mon and wed, L4.14 Date Topic Lecturer 8-22 Intro to catalysis Ready 8-24 Organometallics: structure/reactivity-1 Ready 8-29 Organometallics: structure/reactivity-2 Ready 8-31 Kinetics and mech-1 Ready 9-5 Kinetics and mech-2 …

1 Ready; Catalysis Kinetics-1 There are only two important things in chemistry, kinetics and thermodynamics. And, exp(-ΔG/RT) = k1/k-1, so there’s really only one thing. Kinetics provides information about the transition state of a reaction. We’ll use a simple example to lear…

1 P(tBu)2 P(tBu)2 CuBr P Pd P P P PBu3 Pt H Et3P Cl PEt3 Ir S R3P H PR3 H S -S PF6 - Ir S R3P H PR3 H P P Pd PF6 - Pt H Et3P Cl PEt3 Py P P Ir S R3P H PR3 H PF6 - Pt H Et3P Py PEt3 Cl Fe Pt H Et3P Py PEt3 P P Cl- Organometallic Reaction Mechanisms Ligan…

1 Ready; Catalysis Hydrogenation Categories and Dichotomies: Heterogeneous or Homogeneous Neutral or Cationic Directed or Non-directed Heterolytic or Homolytic H2 Activation Racemic or Enantioselective Syn or Trans Addition Homogeneous Hydrogenation Rh Ph3P Ph3P Cl …

Ready; Catalysis Intro Helpful Texts: Principles and Applications of Organotransition Metal Chemistry, Collman, Hegedus, Norton, Fink The Organometallic Chemistry of the Transition Metals, Crabtree; Prof. M-Christina White’s lecture notes: http://www.courses.fas.harvard.edu/~chem153/ (many …

Substrate pKa's. Numbers are approximations for outside the range -2 - 16, but useful to know. For an extensive list, see http://www.chem.wisc.edu/areas/reich/pkatable/ Inorganics H2O DMSO CF3SO3H -14 HCl -8 H3O+ -2 H2O 16 NH4Cl 9 Organic X-H AcOH 5 12 O+ CH3Ph H -6 Me2OH+ -4 CH3SO3H -3 …

Ready; Catalysis Conjugate Addition Topics covered 1. 1,4 addition involving copper a. stoichiometric reactions b. catalytic reactions c. allylic substitution 2. Conjugate addition without copper a. Ni-based systems b. Rh-based systems 3. Catalytic addition of heteroat…

www.afm-journal.de © 2021 Wiley-VCH GmbH2104665  (1 of 16) Research Article An Anti-Freezing, Ambient-Stable and Highly Stretchable Ionic Skin with Strong Surface Adhesion for Wearable Sensing and Soft Robotics Binbin Ying, Ryan Zeyuan Chen, Runze Zuo, Jianyu Li, and Xinyu Liu* Natural living …

Reactivity Umpolung-1 Ready Reactivity Umpolung: reversal of normal polarity electrophiles become nucleophiles nucleophiles become electrophiles Outline: 1. electrophilic heteroatoms 2. acyl anions 3. homoenolates 4. the cyclopropane tric…

Protecting Groups in Organic Synthesis-1 Ready Protecting groups are a sad fact of synthetic chemistry They are usually needed, but rarely desired Many syntheses have stalled because of trouble putting on or removing protecting groups 4 bas…