7250-92-2

Basic information

• Product Name: 3-Ethyl-1-penten-4-yn-3-ol
• Synonyms: 3-Ethyl-1-penten-4-yn-3-ol
• CAS NO: 7250-92-2
• Molecular Formula: C₇H₁₀O
• Molecular Weight: 110.1537
• Mol File: 7250-92-2.mol
• Article Data: 2

Chemical Properties

• Boiling Point: 151.9°Cat760mmHg
• Flash Point: 62.2°C
• Appearance: /
• Density: 0.914g/cm³
• Vapor Pressure: 1.35mmHg at 25°C
• Refractive Index: 1.468
• CAS DataBase Reference: 3-Ethyl-1-penten-4-yn-3-ol(CAS DataBase Reference)
• NIST Chemistry Reference: 3-Ethyl-1-penten-4-yn-3-ol(7250-92-2)
• EPA Substance Registry System: 3-Ethyl-1-penten-4-yn-3-ol(7250-92-2)

Safety Data

• Hazardous Substances Data: 7250-92-2(Hazardous Substances Data)

Usage

InChI:InChI=1/C7H10O/c1-4-7(8,5-2)6-3/h1,5,8H,2,6H2,3H3

Upstream product

• 32830-97-0 1-chloro-3-pentanone 
• 70277-75-7 lithium acetylide 
• 1629-58-9 4-penten-3-one 
• 74-86-2 acetylene 

Downstream Products

• 26839-80-5 3-ethyl-5-chloro-pent-1-en-4-yn-3-ol 
• 98546-65-7 3-ethyl-5-bromo-pent-1-en-4-yn-3-ol 
• 98593-31-8 carbamic acid-(1-ethynyl-1-ethyl-allyl ester) 

Relevant articles and documents

Rhodium-catalyzed synthesis of 1,2-dihydropyridine by a tandem reaction of 4-(1-acetoxyallyl)-1-sulfonyl-1,2,3-triazole

A tandem reaction of 4-(1-acetoxyallyl)-1-sulfonyl-1,2,3-triazole including formation of α-imino rhodium carbene, 1,2-migration of an acetoxy group and six electron electrocyclic ring closure was reported. The migration of the OAc group with excellent chemoselectivity was the crucial process, leading to the formation of 1,2-dihydropyridine specifically in up to 90% yield. Several transformations of the dihydropyridine product were also achieved illustrating the potential of the protocol in organic synthesis. Based on the observation of the intermediate, a plausible mechanism was proposed.