Introduction:
Ethers are the family of organic compounds by the general formula, CnH2n +2O. They are isomeric by the aliphatic monohydric alcohols with the general formula CnH2n+1OH. Epoxides are formed whenever an oxygen atom is associated to carbon atoms of a carbon chain making a three membered ring.
Structures of Ethers:
Ethers acquire the structure: R-O-R'. R and R' might be aliphatic or aromatic.
For illustration:
CH3 - O - CH3
Methoxymethane (Dimethyl ether)
CH3 - O - CH2CH3
Methoxy ethane (Ethyl methyl ether)
Symmetrical and Unsymmetrical Ethers:
Symmetrical ethers are the compounds in which R and R' are similar, they are as well termed as simple ethers.
CH3 - O - CH3 CH3CH2 - O - CH2CH3
Methoxy methane Ethoxy ethane
Unsymmetrical ethers are the compounds in which R and R' are different, they are as well termed as mixed ethers.
CH3- O- CH2CH3
Methoxyethane
Cyclic Ethers:
These are the compound having the oxygen atom in a ring. They are heterocyclic compounds.
Fig: Cyclic Ethers
The three membered cyclic ethers are termed as Epoxides. Dissimilar to most ether, Epoxides are extremely reactive substances.
Naming Ethers and Epoxides:
Ethers can be named by using the common system or the IUPAC system.
Common System: In the common system, ethers are named via prefixing the names of alkyl radicals joined to oxygen in alphabetical order prior to the name ether.
For example: CH3-O-CH3 is termed as dimethyl ether and CH3-O-C2H5 is simply ethyl methyl ether (that is, in alphabetical order).
IUPAC System: By using the IUPAC nomenclatures, ethers are termed as alkoxy derivatives of alkanes. The prefix, 'OR' is composed of the name of the simpler alkyl group in the molecule by the '-yl' ending substituted by the '-oxy'. The alkoxy prefix is then followed via the name of the corresponding alkane of the other alkyl group in the molecule.
Fig: IUPAC and Common Names of Ethers
In each and every case, the ring is numbered beginning at the oxygen.
Tetrahydropyran and tetrahydrofuran are the acceptable synonyms for oxane and oxalane correspondingly.
Some of the substances have more than one ether linkage, for illustration the diethers, 1, 2-dimethoxyethane and 1, 4-dioxane and the triether, diglyme.
CH3OCH2CH2OCH3 CH3OCH2CH2OCH2CH2OCH3
1, 2-Dimethoxy ethane Diethylene glycol dimethyl ether
(Diglyme)
Compounds that have some ether functions are termed to as polyethers.
Isomerism:
Ethers show the given kinds of structural isomerism.
Functional group isomerism:
Ethers are isomeric with alcohols as both encompass the similar general formula (CnH2n+2O) however different functional groups. For illustration, Methoxymethane (CH3OCH3) and ethanol (CH3CH2OH) have the similar molecular formula, C2H6O.
Metamerism:
Ethers show Metamerism due to the difference in the size of the alkyl groups joined to the oxygen atom. For illustration, the formula C4H10O symbolizes three isomeric ethers or metamers.
CH3OCH2CH2CH3 C2H5OC2H5
Methoxy propane Ethoxy ethane
Tutorsglobe: A way to secure high grade in your curriculum (Online Tutoring)
Expand your confidence, grow study skills and improve your grades.
Since 2009, Tutorsglobe has proactively helped millions of students to get better grades in school, college or university and score well in competitive tests with live, one-on-one online tutoring.
Using an advanced developed tutoring system providing little or no wait time, the students are connected on-demand with a tutor at www.tutorsglobe.com. Students work one-on-one, in real-time with a tutor, communicating and studying using a virtual whiteboard technology. Scientific and mathematical notation, symbols, geometric figures, graphing and freehand drawing can be rendered quickly and easily in the advanced whiteboard.
Free to know our price and packages for online Chemistry tutoring. Chat with us or submit request at [email protected]
tutorsglobe.com test for identification assignment help-homework help by online epidemiology tutors
www.tutorsglobe.com offers shift in demand curve homework help, shift in demand curve assignment help, answering questions to shift in demand curve, economics solutions by online economics tutor's help.
tutorsglobe.com derivation of m-m equation assignment help-homework help by online enzyme kinetics tutors
tutorsglobe.com objectives of financial management assignment help-homework help by online financial management tutors
tutorsglobe.com management of fish farm assignment help-homework help by online pisciculture tutors
Theory and lecture notes of Public Goods all along with the key concepts of public goods, Free Rider Problem, Optimal Output Decision of Public Good, Externalities and Public Goods. Tutorsglobe offers homework help, assignment help and tutor’s assistance on Public Goods.
www.tutorsglobe.com offers compounds with several stereogenic centers homework help, compounds with several stereogenic centers assignment help, online tutoring assistance, organic chemistry solutions by online qualified tutor's help.
www.tutorsglobe.com offers free assignment help for vogel’s approximation method, unit cost penalty method, operation research subject.
tutorsglobe.com hormonal methods assignment help-homework help by online contraception tutors
periodic table, tutorial all along with the key concepts of beginning of classification, attempts made by j w dobereiner, attempts made by j w dobereiner, attempts made by john newlands, work of lothar meyer, mendeleev's periodic law
TutorsGlobe.com Reabsorption in Henles loop Assignment Help-Homework Help by Online Mechanism of urine formation Tutors
Particle in One Dimensional Box Problem tutorial all along with the key concepts of Schrödinger wave equation, Orthogonal and Orthonormal Wave Functions, Free electron model
Molecular Orbital of Molecules, tutorial all along with the key concepts of Description of Homonuclear Diatomic Molecules, Bond order, Some Important Consequences from Molecular Orbital, Theory of Heteronuclear Diatomic Molecules
the working of fan is which they do not in fact decrease the temperature of the room but because of the circulation and wind motion they result in surface cooling and provide a breezy feeling.
the working of hair dryer is very much simple and most of its mechanisms revolve around its fan. while the dryer is switched on, the electricity travels to the windings of the motor of the fan.
1962070
Questions Asked
3689
Tutors
1440134
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!