17351-29-0Relevant academic research and scientific papers
Novel ene trimerization of 1-phenylcyclopropene
Lee, Gon-Ann,Chang, Chih-Yi
, p. 8949 - 8951 (2004)
1-Phenylcyclopropene (1) was synthesized by treatment of 1,1,2-tribromo-2-phenylcyclopropane (2) with 2.5 equiv of methyllithium followed by protonation. Compound 1 underwent ene dimerization to form ene dimer 5 followed by ene reaction with monomer 1 (enophile) to give an ene trimer 6. Both of these two ene reactions derived endo transition states. In the meantime, the [2+2] adduct, trans-1,2-diphenylbicyclo[3.1.0.02,4]hexane (7), was also formed. When the adduct 7 was heated at THF refluxing temperature, 1,2-diphenylcyclohexa-1,4-diene (8) was obtained. Compound 8 was treated with DDQ to yield o-diphenylbenzene.
Synthesis of cyclic 1-alkenylboronates via Zr-mediated double functionalization of alkynylboronates and sequential Ru-catalyzed ring-closing olefin metathesis
Nishihara, Yasushi,Suetsugu, Masato,Saito, Daisuke,Kinoshita, Megumi,Iwasaki, Masayuki
, p. 2418 - 2421 (2013/06/27)
Synthesis of novel cyclic 1-alkenylboronates is accomplished through the zirconium-mediated regio- and stereoselective double functionalization of 1-alkynylboronates and the subsequent ruthenium-catalyzed ring-closing metathesis (RCM). The obtained substituted cyclic 1-alkenylboronates are transformed into o-terphenyl and triphenylene derivatives.
Stereoselective construction of 3a-methylhydrindanes starting from 2,7-enynol derivatives based on Ti(II)-mediated cyclization and Ru-catalyzed ring-closing metathesis
Ohkubo, Mutsumi,Uchikawa, Wataru,Matsushita, Hitomi,Nakano, Aiko,Shirato, Takayuki,Okamoto, Sentaro
, p. 5181 - 5185 (2007/10/03)
The Ti(II)-mediated cyclization of 3-methyloct-2-en-7-yn-1-ol derivatives 2 proceeded stereoselectively to afford 1-methyl-2-(1-alkylbut-3-enylidene)-1-vinylcyclopentanes 3 after treatment of the resulting alkenyltitaniums with allylbromide in the presenc
