1740-74-5

Basic information

• Product Name: 1 1-DIETHOXY-3-METHYL-2-BUTENE 97
• Synonyms: 1,1-diethoxy-3-Methylbut-2-ene;1,1-Diethoxy-3-Methyl-2-butene 97%;1 1-DIETHOXY-3-METHYL-2-BUTENE 97
• CAS NO: 1740-74-5
• Molecular Formula: C₉H₁₈O₂
• Molecular Weight: 158.239
• Product Categories: Alkenes;Organic Building Blocks;Building Blocks;Chemical Synthesis;Organic Building Blocks;Acyclic
• Mol File: 1740-74-5.mol
• Article Data: 13

Chemical Properties

• Boiling Point: 53-58 °C20 mm Hg(lit.)
• Flash Point: 140 °F
• Appearance: /
• Density: 0.837 g/mL at 25 °C(lit.)
• Vapor Pressure: 0.953mmHg at 25°C
• Refractive Index: n20/D 1.421(lit.)
• CAS DataBase Reference: 1 1-DIETHOXY-3-METHYL-2-BUTENE 97(CAS DataBase Reference)
• NIST Chemistry Reference: 1 1-DIETHOXY-3-METHYL-2-BUTENE 97(1740-74-5)
• EPA Substance Registry System: 1 1-DIETHOXY-3-METHYL-2-BUTENE 97(1740-74-5)

Safety Data

• RIDADR: UN 3271 3/PG 3
• WGK Germany: 3
• Hazardous Substances Data: 1740-74-5(Hazardous Substances Data)

Usage

Uses

1,1-Diethoxy-3-methyl-2-butene may be used in the synthesis of:6,6,10-trimethyl-4-propyl-10,11-dihydro-2H,6H,12H-dipyrano[2,3-f:2′,3′-h]chromene-2,12-dioneangular pyranocoumarins6-cyano-2,2-dimethyl-2-H-1-benzopyran

General Description

1,1-Diethoxy-3-methyl-2-butene is an acyclic alkene.

InChI:InChI=1/C9H18O2/c1-5-10-9(11-6-2)7-8(3)4/h7,9H,5-6H2,1-4H3

Upstream product

• 64-17-5 ethanol 
• 17466-13-6 1-ethoxy-3-methyl-buta-1,3-diene 
• 107-86-8 3,3-dimethyl acrylaldehyde 
• 122-51-0 orthoformic acid triethyl ester 
• 5344-23-0 diethoxyacetaldehyde 
• 1530-33-2 isopropyltriphenylphosphonium bromide 
• 5329-14-6 aminosulfonic acid 
• 3842-03-3 isovaleraldehyde diethyl acetal 
• 590-86-3 isovaleraldehyde 
• 1825-62-3 ethyl trimethylsilyl ether 
• 3017-69-4 2-methyl-1-propenylbromide 
• 14444-77-0 diethyl phenyl orthoformate 
• 7463-52-7 2-bromo-1,1-diethoxy-3-methyl-butane 
• 865-47-4 potassium tert-butylate 

Downstream Products

• 167482-50-0 1,2-O-Isopropylidene-3-O-(p-phenylbenzyl)-4,5-O-<(1'R)-3'-methyl-2'-buten-1'-yl>-β-D-fructopyranose 
• 107-86-8 3,3-dimethyl acrylaldehyde 
• 22927-97-5 6-methoxy-2,2-dimethyl-2H-chromene 
• 19013-07-1 desmethoxyencecalin 
• 67667-62-3 8-hydroxy-6-acetyl-2,2-dimethylchromene 
• 1005322-18-8 3-benzyl-4,6,6,10-tetramethyl-10,11-dihydro-2H,6H,12H-dipyrano[2,3-f:2',3'-h]chromene-2,12-dione 
• 1005322-33-7 6,6,10-trimethyl-4-p-nitrophenyl-2H,6H,12H-benzo[1,2-b:3,4-b':5,6-b'']tripyranyl-2,12-dione 
• 1005322-35-9 6,6,10-trimethyl-4-(3,4,5-trimethoxylphenyl)-2H,6H,12H-benzo[1,2-b:3,4-b':5,6-b'']tripyranyl-2,12-dione 
• 1005322-28-0 6,6-dimethyl-4-n-propyl-10-phenyl-2H,6H,12H-benzo[1,2-b:3,4-b':5,6-b'']tripyranyl-2,12-dione 
• 1005322-29-1 6,6-dimethyl-4-n-propyl-10-(p-methylphenyl)-2H,6H,12H-benzo[1,2-b:3,4-b':5,6-b'']tripyranyl-2,12-dione 
• 303007-22-9 2,2-dimethyl-8-oxo-10-propyl-2H,8H-pyrano[2,3-f]chromen-5-yl 4-methylbenzenesulfonate 
• 1296275-35-8 4-methyl-2-oxo-N-phenylpent-3-enamide 
• 1296275-36-9 4-methyl-2-oxo-N-p-tolylpent-3-enamide 
• 1296275-43-8 (E)-N-(3-ethoxy-5,5-dimethylfuran-2(5H)-ylidene)aniline 

Relevant articles and documents

Synthesis of 6-Cyano-2,2-dimethyl-2H-1-benzopyran and Other Substituted 2,2-dimethyl-2H-1-benzopyrans

A practical synthesis of 6-cyano-2,2-dimethyl-2H-1-benzopyran (1) has been developed.This process involves the pyridine-catalyzed condensation of 1,1-diethoxy-3-methyl-2-butene (6) with 4-cyanophenol (3) in toluene or xylene at elevated temperatures.The development of this process, including an evaluation of solvents, bases, acid catalysts, and alterantive acetals, along with an improved synthesis of 1,1-diethoxy-3-methyl-2-butene, is discussed.Using this method, a variety of other substituted 2,2-dimethyl-2H-1-benzopyrans were synthesized.

Isoflavone type compound as well as preparation method and application thereof

The invention provides an isoflavone type compound and a preparation method thereof. A structural formula of the isoflavone type compound is shown as a formula and the formula is shown in the description, wherein R is a formula shown in the description, a

Asymmetric epoxidation of chromenes mediated by iminium salts: Synthesis of mollugin and (3S,4R)-trans-3,4-dihydroxy-3,4-dihydromollugin

Organocatalytic asymmetric epoxidation of chromenes mediated by iminium salt catalysts under non-aqueous conditions provided ees as high as 99%. Contrastingly, reaction under aqueous conditions can form the corresponding diol products with ees as high as 71%. The process has been used for the synthesis of the East African medicinal plant metabolite (3S,4R)-trans-3,4-dihydroxy-3,4-dihydromollugin.