Monophotooxydation selective de dialkylgermylet -stannylporphyrines

Some aspects of organometallic chemistry in metalloporphyrin chemistry: synthesis, chemical reactivity, and electrochemical behavior of porphyrins with metal-carbon bonds

“…Pure samples of monoperoxides have been prepar-ed228 by using selected wavelengths and temperatures for the photooxidation of (TPP)M(R)2 where M = Ge and R = C2H5, n-C3H7, n-C4H9, i-C4H9, CH2SiMe3, CH2=CH-CH2, C6H5CH2, n-C6H13, or i-C3H7 and where M = Sn and R = CH2Si(CH3)3. 228 The monoperoxides were characterized on the basis of 1H NMR and UVvisible data.…”

Excited states of polyoxometalates as oxidatively resistant initiators of hydrocarbon autoxidation. Selective production of hydroperoxides

“…The photooxidation of organic compounds by polyoxometalates, P (eq 3), and the subsequent oxidation of the photoreduced forms, Pr (eq 4), have been described by several investigators. 4 Although SH2 + hv + P -S + 2H+ + Pr (3) Pr + 2H+ + y2o2 -P + H20…”

Stereochemical Control in Metalloporphyrin Chemistry: Synthesis and Characterization of cis- and trans-Sn(porphyrin)Ph2

“…In spite of the fact that the covalent radius of Sn is rather large, being roughly in between that of Ti and Zr, all reported derivatives of general formula Sn(por)L 2 (L = e.g. F, Cl, OMe, OH) show trans geometries. , Tin porphyrin dialkyls were first reported by Pommier − but could not be isolated because of their photoactivity and O 2 sensitivity. Kadish recently prepared the first porphyrin complexes containing a stable tin−carbon bond by oxidative addition of MeI to Sn(II)(Por) .…”