1089-59-4Relevant articles and documents
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Gilman,Rosenberg
, p. 3592 (1953)
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A utility for organoleads: Selective alkyl and aryl group transfer to tin
Arias-Ugarte, Renzo N.,Pannell, Keith H.
, p. 1703 - 1708 (2018/02/09)
Me4Pb and Ph4Pb readily transfer methyl or phenyl groups to an equivalent molar ratio of tin(iv) chlorides in the order SnCl4 > MeSnCl3 > Me2SnCl2 > Me3SnCl, often in a selective manner. Me3PbCl and Ph3PbCl specifically transfer a single methyl/phenyl group under the same reaction conditions to produce recovered yields in >75%. Specific transfer of 2 methyl groups from PbMe4 can be achieved at elevated temperatures and/or a 2:1 molar ratio Pb:Sn.
Preparation method and application of triphenyl methyltin
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Paragraph 0027; 0028; 0029; 0030; 0031; 0032, (2016/12/12)
The invention discloses a preparation method and application of triphenyl methyltin.Triphenyl methyltin is a compound shown in the following structural formula (I) shown in the description, wherein Me is methyl.The preparation method has the advantages that the yield is high, reaction time is short, and a solvent can be recycled.Triphenyl methyltin prepared through the method can be further used for preparing compounds or products containing phenyl methyl and other alkyl mixed tin.
Synthesis, structural characterization and antimicrobial activity of mixed aryl-alkyl diorganotin(IV) compounds with quinoline-2-carboxylate (L -): {RR'SnLCl}n and RR'SnL2
Vafaee, Marzieh,Amini, Mostafa M.,Khavasi, Hamid Reza,Ng, Seik Weng,Tiekink, Edward R. T.
, p. 471 - 477 (2012/11/07)
A series of unsymmetrical diorganotin derivatives of quinoline-2-carboxylic acid (LH), namely polymeric {MePhSnClL}n (1) and {EtPhSnClL} n (2), and mononuclear MePhSnL2 (3) and EtPhSnL 2 (4), was synthesized by the reaction of LH with the MePhSnCl 2, EtPhSnCl2, MePhSnO, and EtPhSnO precursors, respectively. The compounds were characterized by elemental analysis and infrared spectroscopy, as well as by 1 H, 13 C and 119Sn NMR. The molecular structures of representative compounds 2 and 4 were determined by single-crystal X-ray crystallography. This study showed that polymeric 2 adopts a distorted octahedral geometry as the carboxylate ligand N,O chelates an Sn atom and at the same time bridges a neighbouring Sn atom via the second O atom, with the remaining sites being occupied by the Cl and two C atoms; the O atoms are trans to each other. The result of the μ2-bridging mode of L- is the formation of a supramolecular helical chain. Compound 4 adopts a skew-trapezoidal bipyramidal geometry with the organo groups lying over the plane of the two N,O-chelating carboxylate ligands and being directed over the weaker Sn-N bonds. The in vitro antimicrobial activities of 1-4 against a Gram-positive bacteria strain (Bacillus subtilis), a Gram-negative bacteria strain (Escherichia coli) and against Candida albicans were studied and compared with the antimicrobial activities of Ph2SnL2 and Me2SnL2, and with the antimicrobial standards gentamicin, tetracycline, ampicillin and penicillin. All organotin compounds displayed remarkable antibacterial activities that were comparable to those of the standard drugs, in particular against B. subtilis, where the activity was correlated with the number of Cl substituents.
