91606-57-4

Basic information

• Product Name: C₁₈H₁₇NO₂
• CAS NO: 91606-57-4
• Molecular Weight: 279.338
• Mol File: 91606-57-4.mol

Chemical Properties

• CAS DataBase Reference: C₁₈H₁₇NO₂(CAS DataBase Reference)
• NIST Chemistry Reference: C₁₈H₁₇NO₂(91606-57-4)
• EPA Substance Registry System: C₁₈H₁₇NO₂(91606-57-4)

Safety Data

• Hazardous Substances Data: 91606-57-4(Hazardous Substances Data)

Upstream product

• 91606-51-8 trans-1,2-Bis<1-(trimethylsilyl)cyclopropyl>ethylene Oxide 
• 91606-53-0 trans-1-(1-Chlorocyclopropyl)-2-<1-(trimethylsilyl)cyclopropyl>ethylene 
• 91606-52-9 1-<1-(Trimethylsilyl)cyclopropyl>-2-cyclopropylideneethanol 
• 941-69-5 N-phenyl-maleimide 
• 36336-98-8 Dicyclopropylideneethane 

Relevant articles and documents

Silicon in Organic Synthesis. 26. Expedient Synthesis of Dicyclopropylideneethane via Functionalized 1-(Trimethylsilyl)cyclopropanes

Dicyclopropylideneethane (1) has been prepared from two different 1-(trimethylsilyl)cyclopropane derivatives.In the first, aldehyde 4 is coupled in the presence of zerovalent titanium to give olefin 5 which is readily epoxidized.The alternative methodology features conversion of bromide 6 to sulfide 7 and subsequent application of Ramberg-Baecklund methodology to arrive at 5.Treatment of epoxide 9 with tetra-n-butylammonium fluoride delivers allylic alcohol 10 whose conversion to 1 simply requires activation to the chloride and reexposure to fluoride ion.The targetdiene exhibits a proclivity for polymerization when kept as a neat solid.This tendency is reduced in dilute solution under an inert atmosphere and is almost entirely inhibited at -70 deg C.As expected, 1 is a reactive diene in Diels-Alder reactions despite the obvious steric congestion at its bonding centers.