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Review of Strategies of Organic Chemistry Organic Chemistry Review

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					Strategies of Organic Chemistry Organic Chemistry Review Review

 review strategy of organic chemistry knowledge

 Review of Strategies of Organic Chemistry

 college entrance examination and tests of organic chemistry knowledge is the
calendar year one of the elements, for example, the classification of organisms,
structure and composition, organic reaction types, the mutual transformation of
organic matter, organic extraction and chemical synthesis as well as oil, coal chemical
industry, the candidate has always put the unit exam scores as the project will not give
up or neglect, even minor errors, will be dejected not already. However, most of these
knowledge and daily life, industrial and agricultural production, energy, transport,
health, environmental protection, scientific research, closely linked, and into which
there is knowledge of the expansion and extension, increasing the breadth of this part
of the exam and the difficulty of students to master the need to spend some time and
attention to review the skills, can only be more effective, to review the best results.
 I think: The Chemical Basis of skilled knowledge to solve practical problems and in
solving practical problems in consolidating their own knowledge of chemistry,
organic chemistry is a good way to review.
 how to master the basic knowledge
 based on the structural characteristics of organic matter and Properties of
Homologous, you can use "interchange law" to review the nature of the various types
of organic matter and organic reaction type of knowledge points.
 First of all, according to saturated hydrocarbons, unsaturated hydrocarbons, aromatic
hydrocarbons, hydrocarbon derivatives of the order, followed by consolidation of its
structural characteristics, variation of physical properties, chemical properties of the
reaction type and the chemical formula of writing and a variety of Preparation of
organic methods. These data have a variety of reference books, but students are not
paid much attention, most of the students just look at it, but I do not know under the
"Law of holographic memory," only to understand their own hands on the paper side
edge writing, deeply imprinted in their mind to, remember in mind. Secondly,
according to the seven types of organic reactions (substitution, addition, elimination,
oxidation, reduction, increase accumulation, condensation), which summarized the
relevant reactions of organic compounds can occur, and write the chemical equation.
Third, according to the order of functional group, a functional group by listing the
chemical properties and reactions with such cross-review, knowledge and skilled
enough to achieve the basic purpose. Proficiency standards are: a reference to an
organic, immediately to reflect its various properties; a feature that certain organic
reactions, immediately to reflect what organisms possess properties; a reference to a
functional group, will know the appropriate chemical properties. General nature of the
material must be accompanied by its particularity. For example, substitution of the
continuity of alkanes, ethylene planar molecular structure, the second olefin
polymerization 1-4 addition and increase the formation of new pairs of health, the
benzene ring conjugated Ji key features of the oxidation reaction of toluene, halogen
on behalf of the hydrolysis and elimination reactions of hydrocarbons, l-bit alcohol
and 2 - bit different from alcohol oxidation, aldehyde can be oxidized can be restored,
the condensation reaction of phenol and formaldehyde, carboxyl oxygen double bond
in place will not break hydrogenation reaction, the law of burning organic matter,
carbon atoms of line coplanarity problems, caused by interaction between functional
groups and chemical properties of the material change and so the particularity of these
conflicts are often an important source of exam questions, must be paid.
 Example 1:
 Shanghai in 2004, entitled Examination of the 29 questions. This is a typical basic
applications issues, basic knowledge of organic :1-3 plus poly butadiene principle, the
hydrolysis of halogenated hydrocarbons, olefin addition reaction, l-bit of alcohol
oxidation, carboxylic acid and alcohol esterification reaction and the reaction of other
types of judgments. In all fairness, according to the review method, the answer should
be no difficulty.
 life with the basic knowledge to solve problems in organic chemistry
 Entrance Examination of the Evolution of the organic relationship there must be
designed to infer or synthetic problem. Such questions are usually for new drugs, dye
intermediates, the synthesis of new organic material as a carrier subjects, by
introducing new information, combined number of compounds synthesized with the
specified product structure, from which leads to various problems related to them are:
inference organic raw materials, intermediate products and the resultant structured,
organic reaction types, and write the chemical equation and so on. Thinking skills
required are: the depth of thinking (deductive reasoning), the flexibility of thinking
(knowledge transfer, analogy) critical thinking (diagnosis and choice) and so on.
 test, however these are not seen in almost all organic reactions based on the principle
of emergence, and obviously the choice of information, refining, processing and
application is difficult. In fact, not difficult, lies in how to read and understand
information, how to master the basic information with their combined knowledge and
problem-solving.
 first, familiar information, as soon as possible to find useful information for the new
organic reaction mechanism, we must understand the context before they can start
solving problems.
 Second, find a breakthrough in problem solving, positive thinking may be required
here, it may reverse thinking.
 third, to find the key to solving problems, is followed by questions on basic
knowledge, then who the basics well, who can correctly answer.
 Example 2:
 to give the title phenol ortho hydrogen atoms active enhanced information, icons
chloride reaction of phenol with the principle of requiring candidates according to the
process of synthesis of polycarbonate to answer questions. This breakthrough is the
theme of the condensation reaction of phenol with acetone. This response is the
migration of phenol with formaldehyde, which is high in organic chemistry just the
important and difficult, on the basis of this reaction, the resulting b and a physical
response of material to solve problems. Found that only a basic knowledge of skilled
to solve problems calmly, and also the basics of this process will be strengthened.
 The answer:
 selection of comprehensive information problem, focus on practice reading, to
extract information and in accordance with the information "was derived from",
"Zhaomaohuahu" capability
 Past Entrance Examination of Organic Chemistry , also about more than 20 articles
on organic reaction mechanism of information, the students themselves collect,
organize, understand, can do so in the knowledge structure, be prepared for solving
problems calmly.
 review of organic chemistry should be placed in the beginning of the semester, this is
because on the one hand the learning convergence sophomore end, the students
readily accepted; the other hand, information on organic chemistry questions, after all,
a certain breadth and depth of early learning early Review Comprehensive review of
benefit when the second phase to consolidate and improve, or if the time away from
the entrance too close, only one of the review process, may be deep enough
penetration.

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posted:8/7/2010
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