94333-16-1Relevant academic research and scientific papers
Rhodium-catalyzed reductive cyclization of 1,6-diynes and 1,6-enynes mediated by hydrogen: Catalytic C-C bond formation via capture of hydrogenation intermediates
Jang, Hye-Young,Krische, Michael J.
, p. 7875 - 7880 (2007/10/03)
Catalytic hydrogenation of carbon-, nitrogen- and oxygen-tethered 1,6-diynes 1a-9a and 1,6-enynes 10a-18a using cationic Rh(l) precatalysts at ambient temperature and pressure enables reductive carbocyclization to afford 1,2-dialkylidene cyclopentanes 1b-
Stereochemistry of the [2+4] cycloaddition of cyclopentyne
Gilbert, John C.,Hou, Duen-Ren
, p. 469 - 474 (2007/10/03)
The [2+4] cycloaddition of cyclopentyne with a pair of diastereomeric 1,3-dienes is found to occur with high stereoselectivity. The results support the applicability of the principles of orbital symmetry even in the case of this exceedingly reactive dienophile.
A zirconocene-coupling route to substituted poly(p- phenylenedienylene)s: Band Gap tuning via conformational control
Lucht, Brett L.,Mao, Shane S. H.,Tilley, T. Don
, p. 4354 - 4365 (2007/10/03)
A series of substituted poly(p-phenylenediyne)s (1a-f) was synthesized by the palladium-catalyzed cross-coupling condensation of terminal dialkynylalkanes with substituted diiodobenzenes. Polymerizations were conducted with 1,4-diiodo-5-hexoxy-2-methoxybe
Reaction of Zirconocene Ethylene Complex with Diynes. Formation of Bridged Zirconacyclopentenes
Takahashi, Tamotsu,Kasai, Kayoko,Xi, Zhenfeng,Denisov, Victor
, p. 347 - 348 (2007/10/02)
Reactions of diynes RCC-X-CCR with zirconocene ethylene complex Cp2Zr(CH2=CH2) were investigated.When X was C6H4 or C4H2S bridged zirconacyclopentenes were selectively formed.They were easily converted into bridged cyclopentenone derivatives.In the case o
Zinc-promoted reactions. 8. The effect of ring strain in the reduction of 1,2-dibenzoylcycloalkanes
Di Vona, Maria Luisa,Luchetti, Luciana,Rosnati, Vittorio
, p. 2949 - 2954 (2007/10/02)
Ring cleavage was the main route in the Zn reduction of 1 in neat AcOH, while selective carbonyl reduction predominated in the presence of LiCl. The less strained 2 underwent only carbonyl reduction with Zn/AcOH. The Clemmensen reduction of both 1 and 2 resulted mainly in acyclic products. The unstrained 3 was fairly resistant towards reduction, and did not undergo ring cleavage.
Selective reduction of alkynes by the reagent Sml2 - Transition metal catalysts - proton donors
Inanaga, Junji,Yokoyama, Yasuo,Baba, Yoshiyasu,Yamaguchi, Masaru
, p. 5559 - 5562 (2007/10/02)
Alkynes were selectively reduced to cis-olefins under mild conditions by SmI2 in admixture with first-row transition metal catalysts and appropriate proton donors, in which the corresponding transition metal hydrides are presumed as the reactive species. The conditions also effected the conversion of 1,6-diynes to the corresponding five-membered carbocycles.
