251449-99-7Relevant academic research and scientific papers
Synthesis of C1- and C 3ν-symmetric porphyrin trimers based on triphenylmethane cores
Papamicael, Cyril A.,Mongin, Olivier,Gossauer, Albert
, p. 791 - 796 (2008/02/09)
This work describes the synthesis of a new class of tripodaphyrin derivatives with a triphenylmethane core. Both C 1- and C 3ν-symmetric tetrahedral large molecules with covalently linked rigid elements were obtained.
Improved, Acid-catalyzed Iodinating Procedures for Activated Aromatics with (Diacetoxyiodo)benzene as the Oxidant
Kryska, Anna,Skulski, Lech
, p. 2501 - 2517 (2007/10/03)
Improved procedures for the oxidative, acid-catalyzed iodination of benzene, iodobenzene and several activated aromatics are presented to give mono-, di-, or triiodinated products in 40-82 percent yields. The reactions proceeded at room temperature in the anhydrous systems: arene or hetarene/diiodine/(diacetoxyiodo)benzene (2)/glacial acetic acid/acetic anhydride, acidified with catalytic amounts of concd. (98 percent) H2SO4. Within at most 15 minutes the iodine coloration faded; the following workups are explained. A similar treatment with dibromine gave tribromomesitylene (65 percent), dibromodurene (62 percent), and 2,7-dibromofluoren-9-one (73 percent). A review on the aromatic halogenation reactions with organic trivalent iodine reagents as the oxidants is presented below.
