Oncopédiatrie: Entretien avec le Pr Danièle Sommelet
✍ Scribed by Danièle Sommelet
- Publisher
- Springer-Verlag
- Year
- 2007
- Weight
- 438 KB
- Volume
- 1
- Category
- Article
- ISSN
- 1950-2184
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## Abstract Complexed dialkylgermylenes R~2~GeNR~3~ or R~2~GePy react with oxiranes or thiirane and lead to dialkylgermanone and germathione __via__ germaoxetanes or germathiacyclobutane. The formation of germadioxolanes or germadithiolane finally observed arises from condensation of dialkylgermano
## Abstract A new synthesis of β‐hydroxyesters involving a reaction between a carbonyl compound, ketene and an alkyl‐orthotitanate is described. The following carbonyl compounds have been studied: aldehydes, ketones, α‐diketones, α‐ or γ‐ketoesters. A reaction mechanism is proposed.