C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
C07F 7/22 (2006.01) C07C 68/04 (2006.01) C07C 69/96 (2006.01) C07B 61/00 (2006.01)
Patent
CA 2710923
The present invention provides a process for producing : a compound represented by XOR2; a dialkyl tin dialkoxide compound having one tin atom, two Sn-R1 bonds and two Sn-OR2 bonds; and/or a tetraalkyl dialkoxy distannoxane compound having one Sn-O-Sn bond, in which each tin atom of the tetraalkyl dialkoxy distannoxane compound has two Sn-R1 bonds and one Sn-OR2 bond, the process comprising reacting in the absence of a catalyst at least one alkyl tin compound selected from the group consisting of i) and ii) below: i) a dialkyl tin compound having one tin atom, two Sn-R1 (wherein R1 represents an alkyl group) bonds, and two Sn-OX bonds (wherein OX is a group in which HOX that is a conjugate acid of OX is a Bronsted acid having a pKa of from 0 to 6.8); and ii) a tetraalkyl distannoxane compound having one Sn-O-Sn bond, in which each tin atom of the tetraalkyl distannoxane compound has two Sn-R1 bonds and one Sn-OX bond (wherein OX is a group in which HOX that is a conjugate acid of OX is a Bronsted acid having a pKa of from 0 to 6.8); and a carbonic acid ester represented by R2OCOOR2 (wherein R2 represents a linear or branched, saturated or unsaturated hydrocarbon group, a hydrocarbon group having a saturated or unsaturated cyclic hydrocarbon substituent, or a Y-CH2- group (wherein Y represents an alkyl polyalkylene group, an aromatic group or a cyclic saturated or unsaturated alkylene ether group)), and/or an alcohol represented by R2OH (wherein R2 is the same as defined above).
L'invention porte sur un procédé consistant à faire réagir au moins un composé d'alkylétain choisi parmi un composé de dialkylétain à un atome d'étain, deux liaisons Sn-R1 [où R1 représente un groupe alkyle] et deux liaisons Sn-OX (où le groupe OX représente un groupe OX dont l'acide conjugué HOX est un acide de Bronsted dont la valeur de pKa va de 0 à 6,8) et autres avec un ester carbonate représenté par la formule : R2OCOOR2 [où R2 représente un groupe hydrocarboné saturé ou insaturé linéaire ou ramifié ou similaire] et/ou un alcool représenté par la formule : R2OH [où R2 est tel que défini ci-dessus pour le groupe R2] en l'absence de tout catalyseur, ce qui permet de produire un composé représenté par la formule : XOR2, un composé dialcoolate de dialkylétain à un atome d'étain, deux liaisons Sn-R1 et deux liaisons Sn-OR2 et autres.
Miyake Nobuhisa
Shinohata Masaaki
Asahi Kasei Chemicals Corporation
Goudreau Gage Dubuc
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