Electrophilic PowerPoint Presentations - PPT
Fall . 2018. Schedule of . day. PPE . and Pre-lab check . – at the door. Quiz. Recitation. Safety. Put bags away. Goggles. Gloves. Lab Coat. Lab part 1. IR . Review. Lab part 2. Due . Dates. . Today.
BY. Ronald Mensah. Introduction . Fluorination methods. Fluorination in Medical chemistry. Conclusion . Writing Component. References . Questions. Outline . Introduction . What is fluorine?. Location on the periodic table .
16-6. Naphthalene is activated toward electrophilic substitution.. Naphthalene undergoes electrophilic substitution rather than addition.. Naphthalene is activated with respect to electrophilic aromatic substitution. Bromination at C1 occurs without a catalyst under mild conditions..
15-8. Benzene undergoes substitution reactions with electrophiles.. Electrophiles attack benzene by substituting for a hydrogen atom, not addition to the ring.. Under the conditions of this type of reaction, ordinary non-aromatic conjugated polyenes would polymerize rapidly..
Synthetic design involves two distinct steps: . (1) retrosynthetic analysis and . (2) subsequent translation of the analysis into a "forward direction" synthesis. . In the analysis, the chemist recognizes the functional groups in a molecule and disconnects them proximally by methods corresponding to known and reliable reconnection reactions..
arene. : includes one or more ring of six carbon atoms with delocalised bonding.. All of the organic substances we have looked at so far have been aliphatic. Benzene belongs to the aromatic class. Benzene’s Structure.
Carbocations. Substitution and . β. -elimination reactions at C(sp. 3. )-X. Electrophilic addition to . nuclephilic. C=C . π. bonds. Substitution . at . nuclephilic. C=C . π. . bonds. Nuclephilic.
Organic Chemistry Chemical reactions part 1 Alkanes – c hemical reactions Combustion Free radical substitution Complete combustion In excess oxygen, short chain alkanes can undergo complete combustion
16-5. To obtain substitutions in positions incompatible with the directing sense of substituents requires a couple of synthetic “tricks”.. Among these are:. Chemical interconversions of ortho, para with meta directors (nitro .
Heterocyclic. Chemistry. Heterocyclic. Chemistry. Five-. membered. . Heterocycles. Pyrrole. , Furan and . Thiophene. Heterocyclic Chemistry. Five Membered Heterocycles-Introduction. The main reason for the study of pyrrole came from the work on the structure of haem; the blood respiratory pigment, and the chlorophyll; the green photosynthetic pigment of plants..
12-1. Because the C-C . bond is relatively weak, alkene chemistry is dominated by its reactions.. The addition of a reagent, A-B, to give a saturated compound is the most common transformation of an alkene..
240 . Chem. 1. The expressing . aromatic compounds . came to mean . benzene. . and derivatives of benzene. .. . Structure of Benzene: Resonance Description. C. 6. H. 6. It contains a six-membered ring and three additional degrees of unsaturation..
Benzene is aromatic: a cyclic conjugated compound with 6 . . electrons. Reactions of benzene lead to the retention of the aromatic core. Types of Reactions. Electrophilic. substitution. Diazonium.