129034-81-7Relevant articles and documents
3-Stannylcyclobutenediones as Nucleophilic Cyclobutenedione Equivalents. Synthesis of Substituted Cyclobutenediones and Cyclobutenedione Monoacetals and the Beneficial Effect of Catalytic Copper Iodide on the Stille Reaction
Liebeskind, Lanny S.,Fengl, Richard W.
, p. 5359 - 5364 (1990)
Treatment of 3,4-diisopropoxycyclobutenedione with n-Bu3SnSiMe3/catalytic CN- furnished 3-isopropoxy-4-(tri-n-butylstannyl)cyclobutenedione in 65 percent yield.This compound cross-coupled with organic iodides attached to sp2- and sp-