Thiane

  • Tetrahydrothiopyran
  • Thiacyclohexan
  • Pentamethylene sulfide

Liquid to solid connection

0.99 g · cm -3 ( 20 ° C)

19 ° C

140-142 ° C

116.5 hPa ( 75 ° C)

1.5067 (20 ° C)

Risk

Template: Infobox chemical / molecular formula search available

Thian, also called Tetrahydrothiopyran is the simplest sulfur-containing six-membered saturated heterocycle.

Representation

Thian can be obtained in good yield by the reaction of 1,5- dibromopentane with sodium sulfide.

A further possibility is the cyclisation of 5 -bromo-1 - pentanethiol, in the presence of a base.

Properties

Thian crystallizes in the cubic crystal system with the lattice parameters a = 869 pm, and four formula units per unit cell.

Reactions

Thian can react as a nucleophile, but only with good leaving groups. Organohalides this can be activated with silver salts. Here, so-called Tetrahydrothiopyranium - forming salts.

Swell

  • The sulfur-containing heterocycle
CAS registry number Vapor pressure Base (chemistry) Sodium hydride CRC Handbook of Chemistry and Physics
641284
de