Accetto Utilizziamo cookies per migliorare il nostro servizio e realizzare statistiche. Questa funzione puó essere disattivata cambiando la configurazione del browser. Continuando a navigare senza modificare questi parametri, consideriamo che l’uso di cookies sia accettato
Source of on thermolysis or photolysis of tributylstannyl radicals, avoiding the problems sometimes attributable to the hydrogen donor capability of Tri-n-butyltin hydride, A13298.ɑ-Iodo-ketones or esters with a suitably-placed double bond undergo radical cyclizations on UV irradiation in the presence of a catalytic amount of the distannane: Tetrahedron Lett., 28, 2477 (1987); J. Org. Chem., 54, 1826, 3140 (1989). Compare analogous reductive cyclizations using the tin hydride. Improved conditions have been developed for generation of the tributylstannyl radical by mild UV irradiation in the presence of a triplet sensitizer (e.g. 4'-Methoxyacetophenone, A11162), allowing selective C-C bond forming reactions to be performed under free-radical conditions: Synlett, 287 (1993)./n
Brings about the deoxygenation of amine oxides: Synthesis, 55 (1987), and the photo-desulfurisation of 1,3-dithiole-2-thiones to tetrathiafulvalenes: J. Am. Chem. Soc., 98, 7440 (1976)./n
For reviews of organotin chemistry, see: Tetrahedron, 45, 909 (1989); Synthesis, 259 (1990)./n
Dichiarazioni di rischio (UE): H301-H312-H315-H319-H372
Toxic if swallowed. Harmful in contact with skin. Causes skin irritation. Causes serious eye irritation. Causes damage to organs through prolonged or repeated exposure.
Dichiarazioni precauzionali: P260-P280-P301+P310a-P305+P351+P338-P405-P501a
Do not breathe dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF SWALLOWED: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.