33935-91-0Relevant academic research and scientific papers
Halogenoborane mediated allene cyclooligomerization
Tao, Xin,W?lke, Christian,Daniliuc, Constantin G.,Kehr, Gerald,Erker, Gerhard
, p. 2478 - 2482 (2019)
The halogenoboranes XB(C6F5)2 (X: Cl, Br) react with allene to give a mixture of the cyclotrimer 1,3,5-trimethylenecyclohexane (1) and the related halogenoborylated cyclotetramerization products 3a and 3b. Alkyl-substituted allenes were catalytically cyclotrimerized metal-free by XB(C6F5)2 (X: Cl, Br) to give cis,trans-2,4,6-trialkyl-1,3,5-trimethylenecyclohexanes under mild conditions.
Selective Metal-free HB(C6F5)2Catalyzed Allene Cyclotrimerization: Formation of 1,3,5-Trimethylenecyclohexane and Its Tris-hydroboration Product
Tao, Xin,Kehr, Gerald,Daniliuc, Constantin G.,Erker, Gerhard
supporting information, p. 1376 - 1380 (2017/01/24)
Allene is cyclotrimerized under metal-free conditions with the borane HB(C6F5)2catalyst to selectively give 1,3,5-trimethylenecyclohexane (3 a). Three-fold hydroboration of the 1,3,5-cyclotrimer with Piers’ borane gives the all-cis 1,3,5-CH2B(C6F5)2substituted cyclohexane product 14.
COOLIGOMERIZATION OF PROPADIENE WITH PROPYNE CATALYSED BY NICKEL(0) COMPLEXES
Cermak, Jan,Blechta, Vratislav,Chvalovsky, Vaclav
, p. 1274 - 1286 (2007/10/02)
Cooligomerization of propadiene with propyne catalysed by bis(1,5-cyclooctadiene)nickel and tetrakis(triphenylphosphine)nickel gives a variety of products, including besides the cooligomers also the homooligomers of both monomers.The type of catalyst affects partially the product distribution due to changes in the degree of oligomerization.Cooligomerization of propadiene with 3-deuteriopropyne provided information about relative proportion of propadiene and propyne units in the oligomers.
