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Selectivities in the Reactions of Alkyl-, Aryl- and Heterosubstituted Organotitanium Compounds Preliminary Communication

✍ Scribed by Beat Weidmann; Leo Widler; Alan G. Olivero; Christopher D. Maycock; Dieter Seebach

Publisher: John Wiley and Sons
Year: 1981
Tongue: German
Weight: 274 KB
Volume: 64
Category: Article
ISSN: 0018-019X
DOI: 10.1002/hlca.19810640136

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✦ Synopsis

Abstract

Solutions of the title compounds R‐Ti(OR′)~3~ (1) are generally available from organolithium (or magnesium) derivatives according to equation 1. It is shown (Table 1) that some heterosubstituted organotitanium compounds are more stable thermally than their lithium counterparts. The reagents 1 are highly selective carbonylophiles (Tables 1 and 2), their reactivity can be modified by variation of the R′O‐group (Table 3) and with the chiral (S)‐2‐methyl‐l‐butoxy group an enantioselective addition can be achieved [equ. 2].

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