364381-76-0

Basic information

• Product Name: N-(buta-2,3-dien-1-yl)-4-methyl-N-(prop-2-yn-1-yl)benzenesulfonamide
• Synonyms: N-(buta-2,3-dien-1-yl)-4-methyl-N-(prop-2-yn-1-yl)benzenesulfonamide
• CAS NO: 364381-76-0
• Molecular Weight: 261.345
• Mol File: 364381-76-0.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: N-(buta-2,3-dien-1-yl)-4-methyl-N-(prop-2-yn-1-yl)benzenesulfonamide(CAS DataBase Reference)
• NIST Chemistry Reference: N-(buta-2,3-dien-1-yl)-4-methyl-N-(prop-2-yn-1-yl)benzenesulfonamide(364381-76-0)
• EPA Substance Registry System: N-(buta-2,3-dien-1-yl)-4-methyl-N-(prop-2-yn-1-yl)benzenesulfonamide(364381-76-0)

Safety Data

• Hazardous Substances Data: 364381-76-0(Hazardous Substances Data)

Upstream product

• 106-96-7 propargyl bromide 
• 346587-69-7 N-(buta-2,3-dien-1-yl)-4-methylbenzenesulfonamide 
• 18913-31-0 2,3-butadien-1-ol 
• 55022-46-3 4-methyl-N-prop-2-ynylbenzenesulfonamide 

Downstream Products

• 792950-47-1 CH₃C₆H₄SO₂NC₄H₅(C(CH₂)Si(CH₃)2C(CH₃)3)CHSn(C₆H₅)3 
• 867189-03-5 4-[buta-2,3-dienyl-(toluene-4-sulfonyl)-amino]-but-2-ynoic acid ethyl ester 

Relevant articles and documents

Gold-catalyzed N, O-functionalizations of 6-allenyl-1-ynes with n-hydroxyanilines to construct benzo[b]-azepin-4-one cores

Gold-catalyzed reactions of 6-allen-1-ynes with N-hydroxyanilines afford thermally stable benzoazepin-4-ones in anti-selectivity; these anti-configured products are easily isomerized to their syn-isomers on a silica column. The mechanism of reactions likely involve initial nitrone/allene cycloadditions, followed by skeletal rearrangement of resulting intermediates.

Silylstannylation of allenes and silylstannylation-cyclization of allenynes. Synthesis of highly functionalized allylstannanes and carbocyclic and heterocyclic compounds

Catalyzed by Pd(0), trialkylsilyltrialkylstannane (R3Si- SnR′3) reagents undergo highly selective additions to 1,2-dien-7-ynes and 1,2-dien-8-ynes to give 2-vinylalkylidenecyclopentanes with silicon and tin substituents on the double bonds. Similar additions of distannanes and borostannanes show that the reactions with silylstannanes are superior in terms of ease of handling of the bifunctional reagents and the isolation of the products after the reaction. The chemo- and regioselectivities are controlled by the enhanced reactivity of the allene unit, while the (Z)-geometry of the exocyclic stannylvinylidene is a consequence of the syn-carbometalation and subsequent reductive elimination from Pd with retention of configuration at the vinyl carbon. Synthesis of highly functionalized pyrrolidines and indolizidines and the reluctance of certain kinds of allenynes and silicon-tin reagents to undergo the cyclization illustrate the scope and limitations of the reaction. Based on the isolation of intermediates, a mechanism for the formation of the cyclic compounds is proposed. Model transition states to explain the stereoselectivity in cyclization of substituted allenynes are provided. Further elaboration using the vinyltin and vinylsilane moieties should lead to highly functionalized carbocyclic and heterocyclic compounds. Under similar conditions, addition of silylstannanes to highly functionalized allenes gives E-allylstannanes with high stereoselectivity. Functional groups such as THP- and silyl-ethers, lactones, β- and γ-lactams, α,β-unsaturated esters, olefins, and substituted acetylenes are tolerated under the reaction conditions.