tert-butyl 3,4-dihydro-1'H-spiro[chromene-2,4'-piperidine]-1'-carboxylate

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Names

[ CAS No. ]:
849928-22-9

[ Name ]:
tert-butyl 3,4-dihydro-1'H-spiro[chromene-2,4'-piperidine]-1'-carboxylate

[Synonym ]:
tert-butyl 4-oxospiro[3H-chromene-2,4'-piperidine]-1'-carboxylate

Chemical & Physical Properties

[ Density]:
1.21g/cm3

[ Boiling Point ]:
456.3ºC at 760 mmHg

[ Molecular Formula ]:
C18H23NO4

[ Molecular Weight ]:
317.38000

[ Flash Point ]:
229.8ºC

[ Exact Mass ]:
317.16300

[ PSA ]:
55.84000

[ LogP ]:
3.35940

[ Index of Refraction ]:
1.568

MSDS

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Safety Information

[ Hazard Codes ]:
Xi

[ HS Code ]:
2934999090

Synthetic Route

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Precursor & DownStream

Precursor

  • N-(tert-Butoxycarbonyl)-4-piperidone
  • Ortho-Hydroxyacetophenone
  • 2,5-Dihydroxyacetophenone
  • Benzophenone
  • Glycolophenone

DownStream

  • SPIRO[CHROMENE-2,4'-PIPERIDIN]-4(3H)-ONE
  • tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)spiro[chromene-2,4'-piperidine]-1'-carboxylate

Customs

[ HS Code ]: 2934999090

[ Summary ]:
2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%