2696-32-4

Basic information

• Product Name: but-3-en-1-ynyl-trimethyl-silane
• Synonyms: but-3-en-1-ynyl-trimethyl-silane
• CAS NO: 2696-32-4
• Molecular Weight: 124.258
• Mol File: 2696-32-4.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 52-53 °C/ 80
• Density: 0.7714 g/cm3(Temp: 204 °C)
• Refractive Index: 1.4512
• CAS DataBase Reference: but-3-en-1-ynyl-trimethyl-silane(CAS DataBase Reference)
• NIST Chemistry Reference: but-3-en-1-ynyl-trimethyl-silane(2696-32-4)
• EPA Substance Registry System: but-3-en-1-ynyl-trimethyl-silane(2696-32-4)

Safety Data

• Hazardous Substances Data: 2696-32-4(Hazardous Substances Data)

Upstream product

• 77877-59-9 Trimethyl-(3-phenylselanyl-but-1-ynyl)-silane 

Downstream Products

• 18081-31-7 trans-1.2-Bis--butadien-(1.3) 
• 21692-94-4 2,3-diphenyl-5-trimethylsilanylethynyl-isoxazolidine 
• 56373-86-5 <1-Iod-4-(phenylsulfonyl)-1,2-butadienyl>-trimethylsilan 
• 1212-08-4 S-Phenyl benzenethiosulfonate 
• 70-55-3 toluene-4-sulfonamide 
• 96138-64-6 N-(2-Chloro-4-trimethylsilanyl-but-3-ynyl)-4-methyl-benzenesulfonamide 
• 96138-59-9 C₁₄H₁₉Cl₂NO₂SSi 
• 96138-58-8 C₁₄H₁₉Cl₂NO₂SSi 
• 98-10-2 benzenesulfonamide 
• 89660-42-4 N-(2-Chloro-4-trimethylsilanyl-but-3-ynyl)-benzenesulfonamide 
• 89660-40-2 C₁₃H₁₇Cl₂NO₂SSi 
• 18828-93-8 1-Trimethylsilyl-3-triphenylmethyl-5,5,5-triphenyl-pentin-⁽¹⁾ 
• 70819-15-7 [3-Chloro-4-(4-nitro-phenylsulfanyl)-but-1-ynyl]-trimethyl-silane 
• 70819-22-6 C₁₃H₁₆ClNO₂SSi 

Relevant articles and documents

Selenium--Stabilized Anions. Preparation of α,β-Unsaturated Carbonyl Compounds Using Propargyl Selenides. Synthesis of (+/-)-7-Hydroxymyoporone

The reaction of alkyl halides, carbonyl compounds, and trimethylsilyl chloride with the mono- and dianion (1) prepared by deprotonation of phenyl propargyl selenide with lithium diisopropylamide gives 1- or 3-monosubstituted or 1,3-disubstituted propargyl selenides (3a).Oxidation to selenoxides (3b) results in rearrangement to 2-(phenylseleno)-1,3-disubstituted propenones.The rate of rearrangement of propargyl selenoxides increases dramatically when the phenyl group is replaced by a 2-nitrophenyl group, and an intermediate allenyl selenate ester (7c) can be observed by low-temperature NMR.By appropriate modification of oxidation conditions, modest yields of 2-iodopropenes (e.g., 10) or the selenium-free enones or enals can be obtained.A synthesis of (+/-)-7-hydroxymyoporone (15) and its epimer has been carried out by using the dianion 1 to assemble the carbon skeleton.The preparation of α-lithioallenyl phenyl selenide (26) has been accomplished, and its reaction with electrophiles has been studied.