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DOI: 10.1055/sos-SD-015-01146

Álvarez, M.; Joule, J. A.Science of Synthesis, (200515827.

The 2-aminoisoquinolinium salts 574 produced by quaternization of isoquinoline with hydroxylamine sulfonates are best stabilized by N-acylation. These salts can then be converted into neutral ylides 575 by side-chain N-deprotonation (Scheme 279).[‌487‌]

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