1482-15-1

Basic information

• Product Name: 3,4-DIMETHYL-1-PENTYN-3-OL
• Synonyms: Dimethylpentynoltech;3,4-Dimethyl-1-pentyn-3-ol, tech., 94%;3,4-Dimethyl-4-pentyn-3-ol;(1,2-DIMETHYL-1-HYDROXYPROPYL)ACETYLENE;3,4-DIMETHYL-1-PENTYN-3-OL;ETHYNYL ISOPROPYL METHYL CARBINOL;TIMTEC-BB SBB008720;3,4-Dimethyl-1-penten-3-ol
• CAS NO: 1482-15-1
• Molecular Formula: C₇H₁₂O
• Molecular Weight: 112.17
• Product Categories: Acetylenes;Acetylenic Alcohols & Their Derivatives
• Mol File: 1482-15-1.mol
• Article Data: 9

Chemical Properties

• Melting Point: -20.62°C (estimate)
• Boiling Point: 133°C
• Flash Point: 133°C
• Appearance: /
• Density: 0,87 g/cm3
• Vapor Pressure: 3.19mmHg at 25°C
• Refractive Index: 1.4360-1.4380
• PKA: 13.21±0.29(Predicted)
• Water Solubility: Fully miscible in water.
• CAS DataBase Reference: 3,4-DIMETHYL-1-PENTYN-3-OL(CAS DataBase Reference)
• NIST Chemistry Reference: 3,4-DIMETHYL-1-PENTYN-3-OL(1482-15-1)
• EPA Substance Registry System: 3,4-DIMETHYL-1-PENTYN-3-OL(1482-15-1)

Safety Data

• Hazard Codes: Xn
• Statements: 10-22
• Safety Statements: 16
• RIDADR: 1987
• HazardClass: 3
• PackingGroup: III
• Hazardous Substances Data: 1482-15-1(Hazardous Substances Data)

Usage

Uses

3,4-Dimethyl-1-pentyn-3-ol is used as pharmaceutical intermediates.

InChI:InChI=1/C7H12O/c1-5-7(4,8)6(2)3/h1,6,8H,2-4H3/t7-/m0/s1

Upstream product

• 563-80-4 3-methyl-butan-2-one 
• 1216963-74-4 lithium acetylide-ethylenediamine complex 
• 60-29-7 diethyl ether 
• 597-04-6 ethyl 2,2-dimethyl-3-oxobutanoate 
• 4301-14-8 acetylenemagnesium bromide 
• 74-86-2 acetylene 
• 70277-75-7 lithium acetylide 
• 1066-26-8 sodium acetylide 

Downstream Products

• 1353035-81-0 C₁₉H₂₄O₆ 
• 1561150-91-1 C₁₅H₁₉NO₄S 
• 1561150-52-4 5-isopropyl-5-methyl-4-methylene-3-tosyloxazolidin-2-one 
• 89458-21-9 3,4-dimethyl-1-phenyl-1-pentyn-4-ol 
• 595-41-5 2,3-dimethyl-3-pentanol 
• 1486476-98-5 C₁₅H₂₁NO₂ 
• 1416772-17-2 ((2E,4E,6E)-3,6-dibromoocta-2,4,6-triene-2,7-diyl)dibenzene 
• 1416772-29-6 ((2E,4E,6E)-3,6-dibromo-7,8-dimethylnona-2,4,6-trien-2-yl)benzene 
• 1416772-28-5 ((2E,4E,6Z)-3,6-dibromo-7,8-dimethylnona-2,4,6-trien-2-yl)benzene 
• 1416772-08-1 (3Z,5E,7E)-4,7-dibromo-2,3,8,9-tetramethyldeca-3,5,7-triene 
• 1342819-63-9 C₁₅H₁₆O 
• 1402218-97-6 C₁₄H₁₆O₂ 
• 565-59-3 2,3-dimethyl pentane 
• 16983-60-1 3,4-Dimethyl-pent-3-en-2-on-semicarbazon 

Relevant articles and documents

ETHERS AND ESTERS OF TERTIARY ALKANOLS FOR USE AS AROMA CHEMICALS

The present invention relates to the use of an ether or an ester of a tertiary alkanol or of mixtures of two or more ethers or esters of tertiary alkanols or of a stereoisomer thereof or of a mixture of two or more stereoisomers thereof as aromachemicals; to the use thereof for modifying the scent character of a fragranced composition; to an aroma chemical composition containing an ether or an ester of tertiary alkanol or of mixtures of two or more ethers or esters of tertiary alkanols or of a stereoisomer thereof or of a mixture of two or more stereoisomers thereof; and to a method of preparing a fragranced composition or for modifying the scent character of a fragranced composition. The invention further relates to specific ethers or esters of tertiary alkanols.

A novel Ireland-Claisen rearrangement/Diels-Alder tandem reaction of propargylic acrylates with acyclic dienophiles

A novel DABCO-catalyzed Ireland-Claisen rearrangement/Diels-Alder tandem reaction of propargylic acrylates 3 with dienophiles 4 was developed in the presence of an excess TMSCl and DBU with 1% hydroquinone as polymerization inhibitor in acetonitrile at refluxing temperature under air. This protocol gave cyclic α,β-unsaturated carboxylic acids 5 with complete regioselectivity.

Stereoselective One-Pot synthesis of 1-Aminoindanes and 5,6-Fused azacycles using a Gold-Catalyzed Redox-Pinacol-Mannich-Michael cascade

"Chemical Equation Presented" Just another Mannich Monday: A cascade intramolecular redox-pinacol-Mannich-Michael reaction sequence catalyzed by gold complexes can be used to generate a variety of structures including spirocycles, 1-aminoindanes, and 5,6-fused azabicycles that have a quaternary carbon center. The reaction is characterized by complete atom-economy, high diastereoselectivity, and remarkable efficiency through tandem reactions.