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1,3-Propanediol is the organic compound with the formula CH 2 (CH 2 OH) 2. This 3-carbon diol is a colorless viscous liquid that is miscible with water. Products
Neopentyl glycol (IUPAC name: 2,2-dimethylpropane-1,3-diol) is an organic chemical compound. It is used in the synthesis of polyesters , paints , lubricants , and plasticizers . When used in the manufacture of polyesters, it enhances the stability of the product towards heat, light, and water.
[1] [2] It is produced by a method called condensation polymerization or transesterification. The two monomer units used in producing this polymer are: 1,3-propanediol and terephthalic acid or dimethyl terephthalate. Similar to polyethylene terephthalate, the PTT is used to make carpet fibers.
Structure of (C 3 H 6 S 2) 2, the oxidized "dimer" of 1,3-propanedithiol. [4] 1,3-Propanedithiol is used in the synthesis of tiapamil. 1,3-Propanedithiol reacts with metal ions to form dithiolates. Illustrative is the synthesis of the derivative diiron propanedithiolate hexacarbonyl upon reaction with triiron dodecacarbonyl: [5] Fe 3 (CO) 12 ...
Ex 1: The α-keto bromination of propiophenone [93-55-0] (1) gives 2-bromopropiophenone [2114-00-3] (2). Displacement of the halogen and hence amination with piperidine [110-89-4] gave alpha-Piperidinopropiophenone, CID:458526 ( 3 ). and addition of phenyl Grignard reagent to give the benzhydrol product, and hence Dihepanol ( 4 ).
The first synthesis of 1,3-diphenylisobenzofuran was reported in 1905 by A. Guyot and J. Catel. [9] [10] Phenylmagnesium bromide was reacted with 3-phenylphthalide (the latter accessible from the methyl ester of 3-hydroxyphthalide with phenylboronic acid in 95% yield [11]) to a lactol, which gives with mineral acids upon elimination of water 1,3-diphenylisobenzofuran with 87% yield.
The three main types of chemicals in the fluid at this stage of the separation are water, BioPDO, and impurities such as glycerol, sugars, and proteins. Of the three chemicals water has the lowest boiling point (see the water, 1,3-propanediol, and glycerol articles for boiling point information), so it is removed as distillate in the first column.
1,3-Propane sultone is the organosulfur compound with the formula (CH 2) 3 SO 3. It is a cyclic sulfonate ester, a class of compounds called sultones . [ 2 ] [ 3 ] It is a readily melting colorless solid.
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