38453-85-9Relevant articles and documents
1H, 13C, 2D NMR and GCMS characterization of diol derivatives
Manivel,Khan, F. Nawaz
experimental part, p. 825 - 832 (2009/12/24)
Sodium borohydride (SBH) reduction of isocoumarins has been effected in presence of methanol to their respective diols. Diols have been isolated, purified and characterized by GCMS, proton, carbon and two-dimensional NMR spectroscopy analysis. Complete NMR assignments of diols are made using H-H COSY, as well as HSQC, HMQC and HMBC heteronuclear correlation techniques.
Polyphenylene as an electron transfer catalyst in lithiation processes
Yus, Miguel,Gómez, Cecilia,Candela, Pablo
, p. 6207 - 6210 (2007/10/03)
The lithiation of different functionalised chlorinated materials (1a-c), dichlorinated compounds (1d-f) and benzofused cyclic ethers (1g,h) with lithium powder in the presence of catalytic amounts of either linear (LPP) or crosslinked (CPP) polyphenylene, in THF at temperatures ranging between -78 and 20°C, leads to the expected organolithium intermediates (Ia-h), which by reaction with electrophiles [ButCHO, PhCHO, Et2CO, (CH2)5CO, PhCOMe, Me3SiCl] gives, after hydrolysis with water, the expected products 2aa-hf.
Electron-transfer-induced reductive cleavage of phthalans: Reactivity and synthetic applications
Azzena, Ugo,Demartis, Salvatore,Melloni, Giovanni
, p. 4913 - 4919 (2007/10/03)
The behavior of phthalan (1a) was investigated under conditions of electron transfer from alkali metals in aprotic solvents. Reaction with lithium in the presence of a catalytic amount of naphthalene in THF led to the reductive cleavage of an arylmethyl carbon-oxygen bond, with formation of a stable dilithium compound. Trapping of this intermediate with several electrophiles (alkyl halides, carbonyl derivatives, CO2) was successful. The extension of this procedure to several substituted phthalans (1b-i) was investigated, and the regiochemistry as well as the synthetic usefulness of these reactions are discussed.