In chemistry, a carbene is a highly reactive organic molecule containing a carbon atom with six valence electrons and having the general formula: R1R2C: .... commonly encountered in organic chemistry
Organic chemistry
Organic chemistry is a discipline within chemistry which involves the science study of the structure, properties, composition, chemical reaction, and preparation of chemical compounds that contain carbon.... . This reactive intermediate with chemical formula
Chemical formula
A chemical formula is a way of expressing information about the atoms that constitute a particular chemical compound, and how the relationship between those atoms changes in chemical reactions.... CCl2 is easily available by reaction of chloroform
Chloroform
Chloroform, also known as trichloromethane and methyl trichloride, is a chemical compound with chemical formula CarbonHydrogenChlorine3.... and a base such as potassium t-butoxide or sodium hydroxide
Sodium hydroxide
Sodium hydroxide , also known as lye, caustic soda and sodium hydrate, is a caustic metallic Base . Sodium hydroxide forms a strong alkaline solution when dissolved in a solvent such as water, however, only the hydroxide ion is basic.... dissolved in water. A phase transfer catalyst
Phase transfer catalyst
A phase transfer catalyst or PTC in chemistry is a catalyst which facilitates the migration of a reactant in a heterogeneous system from one phase into another phase where reaction can take place.... for instance benzyltriethylammonium bromide is added to facilitate the migration of the hydroxide in the organic phase.
Ethyl acetate is the organic compound with the formula CH3COOCH2CH3. This colorless liquid has a characteristic sweet smell like certain glues or nail polish removers, in which it is used.... when reacted with sodium
Sodium
Sodium is an element which has the symbol Na , atomic number 11, atomic mass 23 amu , and a common oxidation number +1. Sodium is a soft, silvery white, highly reactive element and is a member of the alkali metals within "group 1" .... in methanol
Methanol
Methanol, also known as methyl alcohol, carbinol, wood alcohol, wood naphtha or wood spirits, is a chemical compound with chemical formula carbonhydrogen3oxygenhydrogen .... and phenyl(trichloromethyl)mercury by thermal decomposition
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In chemistry, a carbene is a highly reactive organic molecule containing a carbon atom with six valence electrons and having the general formula: R1R2C: .... commonly encountered in organic chemistry
Organic chemistry
Organic chemistry is a discipline within chemistry which involves the science study of the structure, properties, composition, chemical reaction, and preparation of chemical compounds that contain carbon.... . This reactive intermediate with chemical formula
Chemical formula
A chemical formula is a way of expressing information about the atoms that constitute a particular chemical compound, and how the relationship between those atoms changes in chemical reactions.... CCl2 is easily available by reaction of chloroform
Chloroform
Chloroform, also known as trichloromethane and methyl trichloride, is a chemical compound with chemical formula CarbonHydrogenChlorine3.... and a base such as potassium t-butoxide or sodium hydroxide
Sodium hydroxide
Sodium hydroxide , also known as lye, caustic soda and sodium hydrate, is a caustic metallic Base . Sodium hydroxide forms a strong alkaline solution when dissolved in a solvent such as water, however, only the hydroxide ion is basic.... dissolved in water. A phase transfer catalyst
Phase transfer catalyst
A phase transfer catalyst or PTC in chemistry is a catalyst which facilitates the migration of a reactant in a heterogeneous system from one phase into another phase where reaction can take place.... for instance benzyltriethylammonium bromide is added to facilitate the migration of the hydroxide in the organic phase.
Ethyl acetate is the organic compound with the formula CH3COOCH2CH3. This colorless liquid has a characteristic sweet smell like certain glues or nail polish removers, in which it is used.... when reacted with sodium
Sodium
Sodium is an element which has the symbol Na , atomic number 11, atomic mass 23 amu , and a common oxidation number +1. Sodium is a soft, silvery white, highly reactive element and is a member of the alkali metals within "group 1" .... in methanol
Methanol
Methanol, also known as methyl alcohol, carbinol, wood alcohol, wood naphtha or wood spirits, is a chemical compound with chemical formula carbonhydrogen3oxygenhydrogen .... and phenyl(trichloromethyl)mercury by thermal decomposition
. Dichlorodiazirine is an experimental dichlorocarbene precursor . It is stable in the dark at room temperature
Room temperature
Room temperature is a common term to denote a certain temperature within enclosed space at which humans are accustomed.Room temperature is thus often indicated by general human comfort, with the common range of 10celsius to 23?C , though climate may acclimatize people to higher or lower temperatures.... and decomposes
Chemical decomposition
Chemical decomposition or analysis is the separation of a chemical compound into chemical element or smaller compounds. It is sometimes defined as the opposite of a chemical synthesis.... into the carbene and nitrogen
Nitrogen
Nitrogen is a chemical element that has the symbol N and atomic number 7 and atomic mass 14.00674?. Elemental nitrogen is a colorless, odorless, tasteless and mostly inert diatomic gas at standard conditions, constituting 78% by volume of Earth's atmosphere.... gas by photolysis.
The reaction mechanism for the formation of dichloroaziridine is depicted below:
Carbon tetrachloride, also known by many other names is the organic compound with the chemical formula CCl4. It is a reagent in organic synthesis chemistry and was formerly widely used in fire extinguishers, as a precursor to refrigerations, and a cleaning agent.... with elemental magnesium
Magnesium
Magnesium is a chemical element with the symbol Mg, atomic number 12, atomic weight 24.3050 and common oxidation number +2.Magnesium, an alkaline earth metal, is the ninth most abundance of the chemical elements in the universe by mass.... with ultrasound chemistry . This method is tolerant to ester
Ester
An ester is an often Aroma compound organic chemistry or partially organic compound formed by the reaction between an acid and an alcohol or aromatic alcohol with the elimination of water.... s and carbonyl
Carbonyl
In organic chemistry, a carbonyl group is a functional group composed of a carbon atom double bond to an oxygen atom : C=O.The term carbonyl can also refer to carbon monoxide as a ligand in an inorganic or organometallic complex ; in this situation, carbon is triple-bonded to oxygen : C=O.... compounds because it does not involve strong base
Base (chemistry)
In chemistry, a base is most commonly thought of as an aqueous substance that can accept protons. A base is also often referred to as an alkali if OH- ions are involved.... .
In organic chemistry, an alkene, olefin, or olefine is an Saturation chemical compound containing at least one carbon-to-carbon double bond.... s in a formal [1+2]cycloaddition
Cycloaddition
A cycloaddition is a pericyclic chemical reaction, in which two pi bond are lost and two sigma bond are gained. The resulting reaction is a cyclization reaction.... to form geminal
Geminal
In chemistry, the term geminal refers to the relationship between two functional groups that are attached to the same atom. The prefix gem is applied to a chemical name to denote this relationship, as in a gem-dibromide.... dichlorocyclopropanes
Cyclopropane
Cyclopropane is a cycloalkane molecule with the molecular formula C3H6, consisting of three carbon atoms linked to each other to form a ring, with each carbon atom bearing two hydrogen atoms.... which can subsequently be reduced to proper cyclopropane
Cyclopropane
Cyclopropane is a cycloalkane molecule with the molecular formula C3H6, consisting of three carbon atoms linked to each other to form a ring, with each carbon atom bearing two hydrogen atoms.... s or hydrolyzed to a cyclopropanone
Cyclopropanone
Cyclopropanone is an organic compound with molecular formula C3H4O consisting of a cyclopropane carbon framework with a ketone functional group.... in a gem halide hydrolysis. The preparation of dichlorocarbene from chloroform and its utility in synthesis was discovered by William von Eggers Doering
William von Eggers Doering
William von Eggers Doering is a Professor Emeritus at Harvard University and the former Chair of its Chemistry Department.He is known in the field of organic chemistry for his work on quinine.... in 1954 based on functionalizion of cyclohexene. Anton Geuther in 1862 was the first to propose dichlorocarbene.
Related reactions
The Doering-LaFlamme carbon chain extension describes the conversion of alkenes to allenes (a chain extension) with magnesium
Magnesium
Magnesium is a chemical element with the symbol Mg, atomic number 12, atomic weight 24.3050 and common oxidation number +2.Magnesium, an alkaline earth metal, is the ninth most abundance of the chemical elements in the universe by mass.... or sodium
Sodium
Sodium is an element which has the symbol Na , atomic number 11, atomic mass 23 amu , and a common oxidation number +1. Sodium is a soft, silvery white, highly reactive element and is a member of the alkali metals within "group 1" .... metal through initial reaction of the alkene with dichlorocarbene. The same sequence is incorporated in the Skattebøl rearrangement
Skattebøl rearrangement
The Skatteb?l rearrangement is an organic reaction for converting a geminal halogen cyclopropane to an allene using an organolithium base. This rearrangement reaction is named after its discoverer, Lars Skatteb?l, professor emeritus at the University of Oslo.... to cyclopentadienes. Dichlorocarbene also features in the Reimer-Tiemann reaction
Reimer-Tiemann reaction
The Reimer-Tiemann reaction is a chemical reaction used for the ortho-Formylation reaction of phenols. The reaction was discovered by Karl Ludwig Reimer and Ferdinand Tiemann.... . Closely related is the more reactive dibromocarbene CBr2.
