36638-16-1Relevant articles and documents
Synthesis of benzofurans, tetrahydrobenzopyrans, and related cyclic ethers via cyclic carbopalladation
Negishi, Ei-ichi,Nguyen, Thinh,O'Connor, Brian,Evans, Jeffrey M.,Silveira Jr., Augustine
, p. 55 - 58 (1989)
Treatment of a variety of alkenyl ethers (1-8) derived from o-iodophenol, o-iodobenzyl alcohol, and (Z)-3-iodoallyl alcohols with a catalytic amount of Pd(PPh3)4 or Cl2Pd(PPh3)2 in the presence of NEt3 in refluxing CH3CN gives the corresponding cyclic ethers in good yields.
Copper-catalyzed cross-coupling of boronic esters with aryl iodides and application to the carboboration of alkynes and allenes
Zhou, Yiqing,You, Wei,Smith, Kevin B.,Brown, M. Kevin
supporting information, p. 3475 - 3479 (2014/04/03)
Copper-catalyzed Suzuki-Miyaura-type cross-coupling and carboboration processes are reported. The cross-couplings function well with a variety of substituted aryl iodides and aryl boronic esters and allows for orthogonal reactivity compared to palladium-catalyzed processes. The carboboration method includes both alkynes and allenes and provides access to highly substituted and stereodefined vinyl boronic esters. The alkyne carboboration method is highlighted in the simple one-pot synthesis of Tamoxifen. Cross-Cu-pling: The title cross-couplings function well with a variety of substituted aryl iodides and aryl boronic esters and allows for reactivity orthogonal to that of the palladium-catalyzed processes. The title carboboration method includes both alkynes and allenes and provides access to highly substituted and stereodefined vinyl boronic esters. The alkyne carboboration method is highlighted in a simple one-pot synthesis of Tamoxifen.
Cyclodextrin-Promoted Radical Cyclization of o-(2-Propenyloxy)- and o-(2-Propynyloxy)-benzenediazonium Ions
Fukunishi, Koushi,Shimode, Mitsuo,Hisamune, Rie,Akita, Makoto,Kuwabara, Masaki,et al.
, p. 337 - 340 (2007/10/02)
Radical dediazoniation of o-(2-propenyloxy)- and o-(2-propynyloxy)benzenediazonium ions in the presence of β-cyclodextrin gives selectively dihydrobenzofurans under N2, while hydroxymethylated dihydrobenzofurans and 3-hydroxymethyl-benzofuran under air, respectively.
