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- W2045160844 abstract "Treatment of the stable formyl complex Fe(C5Ph5)(CO(PMe3)(CHO) (1) with an excess of methyl triflate and subsequent addition of NH4PF6 produces the secondary carbene complexes [Fe(η5−C5Ph5)(CO)(PMe3)( = CHOMe)][PF6] (2, 93%). Methyl lithium acts as a dealkylating reagent with 2 to regenerate 1 (81%). Treatment of methoxycarbene complex 2 with LiAlD4 gives the methoxymethyl complex Fe(η5−C5Ph5)(CO)(PMe3)(CH2OMe) (3) in 95% yield. Similarly, reaction of 2 with LiAlD4 gives a 90:10 mixture of Fe(η5−C5Ph5)(CO)(PMe3)(CHDOMe) (3 d1, 80%) diastereoisomers. The carbene complex 2 reacts with MeONa to give the iron dimethylacetal complex Fe(η5−C5Ph5)(CO)(PMe3)(CH(OMe)2 (4, 55%). The cyano(methoxy)methyl complex Fe(η5−C5Ph5(CO)(PMe3){CH(rmCN)(OMe)} (5, 85%) is obtained from the reaction of 2 1 equivalent of KCN. NMR analyses of the crude product revealed that complex 5 was formed as a 85:15 mixture of diastereoisomers. The carbene complex 2 reacts with TMSCCLi to afford a 90:10 mixture of diastereoisomers of the stable methoxy(trimethylsilyethynyl)methyl iron complexes Fe(C5Ph5)(CO)(PMe3) {CH(OMe)(C CTMS)} (6). After extraction and filtration 6 is isolated as a pure diastereoisomer in 63% yield." @default.
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- W2045160844 date "1996-05-01" @default.
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- W2045160844 title "Stereospecific syntheses of functionalised iron alkyl complexes with a stereogenic metal center from an iron formyl precursor" @default.
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- W2045160844 doi "https://doi.org/10.1016/0022-328x(95)06026-s" @default.
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