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Diazo transfer agent, tosyl azide

The diazo keto ester 154 is prepared from the p-keto ester 153 using tosyl azide or p-NBSA.69,70 The diazo ester (156) could not be prepared by diazo transfer with TsN3/NEt3, since elimination usually occurs to yield acrylate.71 A diazo transfer agent, l-ethyl-2-azidopyridinium tetrafluoroborate, successfully converted isoindole keto ester (155) to diazo keto ester (156).71... [Pg.673]

See other pages where Diazo transfer agent, tosyl azide is mentioned: [Pg.1074] [Pg.1074] [Pg.1074] [Pg.1074] [Pg.660] [Pg.194] [Pg.889] [Pg.25] [Pg.311]

See also in sourсe #XX -- [ Pg.1057 ]

See also in sourсe #XX -- [ Pg.1057 ]

See also in sourсe #XX -- [ Pg.1057 ]

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Diazo transfer

Diazo transfer agent

Tosyl azide

Tosyl azide azides

Transfer agents