Crystal structures of two chiral piperidine derivatives: 1-[(1R)-2-hy­droxy-1-phenyl­eth­yl]piperidin-4-one and 8-[(1S)-1-phenyl­eth­yl]-1,4-dioxa-8-aza­spiro­[4.5]decane-7-thione

Acta Crystallographica Section E
Acta Crystallographica
Section E CRYSTALLOGRAPHIC COMMUNICATIONS

IUCr IT WDC

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Figure 4
Synthesis of (II)

. Reaction conditions: (i) ethylene glycol, p-TSA, anhydrous benzene, reflux, 4 h; (ii) Lawesson's reagent in anhydrous toluene, 313 K, 1 h.

CRYSTALLOGRAPHIC
COMMUNICATIONS

ISSN: 2056-9890

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