121493-17-2Relevant academic research and scientific papers
Heterogeneous bimetallic Pt-Sn/γ-Al2O3 catalyzed direct synthesis of diamines from N-alkylation of amines with diols through a borrowing hydrogen strategy
Wang, Liandi,He, Wei,Wu, Kaikai,He, Songbo,Sun, Chenglin,Yu, Zhengkun
supporting information; experimental part, p. 7103 - 7107 (2012/01/05)
Direct synthesis of diamines has been efficiently realized from the N-alkylation of amines with diols by means of heterogeneous bimetallic Pt-Sn/γ-Al2O3 catalyst (0.5 wt % Pt, molar ratio Pt:Sn = 1:3) through a 'Borrowing Hydrogen' strategy under ligand-free conditions. The present methodology provides an environmentally benign route to diamines.
Photoswitchable rotaxanes using the photolysis of alkoxyacridanes
Abraham, Werner,Wlosnewski, Andre,Buck, Karin,Jacob, Sabine
supporting information; experimental part, p. 142 - 154 (2009/04/07)
9-Aryl-9-alkoxy-acridanes and their counterparts, 9-aryl-acridinium ions, have been incorporated into the axles both of one- and two-station [2]rotaxanes. The ring component of the rotaxanes consists of the tetracationic ring cyclobis(paraquat-4,4′-bisphe
Pyridinium derivatives, their production and use
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, (2008/06/13)
Novel pyridinium derivatives represented by the formula (I): STR1 wherein STR2 is an optionally substituted pyridinium ring; R1 is a lower alkyl group or aralkyl group; R7 and R10 are independently hydrogen, a lower alkyl group, aryl group or aralkyl group; l is 0 or 1; R5 is a phenylene group or an alkylene group which may be substituted; R11 is an alkyl group or aryl group; X is a group of the formula: --CH2 OCH2 -- or a group of the formula: STR3 wherein R6 is hydrogen, a lower alkyl or a lower alkoxy, and m is an integer of 0 to 3; U is a group of the formula: STR4 wherein R4 is hydrogen, a lower alkyl group, aryl group or aralkyl group; Y and Z are independently a divalent chain group consisting of one to six members which is selected from the class consisting of groups of the formulae: STR5 wherein R is hydrogen, a lower alkyl group, acyl group or aryl group and at least one of which is a group of the formula: STR6 with the proviso that R may be the same or different from each other, or may form a ring together when two or more groups of the formula: STR7 are present, that R may be bonded to R4 when Y contains a group of the formula: STR8 and that R may be bonded to R11 when Z contains a group of the formula: STR9 and W? is a counter anion; are useful as a platelet activating factor antagonist.
