Hydrogen Sulfide → HCID 15925313, compound

HRID 704210Notes

Reaction equation

HRID 704210 reaction equation
[CH3:1][C:2]1[CH:9]=[CH:8][CH:7]=[CH:6][C:3]=1[CH2:4][NH2:5].[N:10]1([CH2:15][CH:16]([N:18]2[C:31]3[CH:30]=[C:29]([C:32](=[S:34])N)[CH:28]=[CH:27][C:26]=3[S:25][C:24]3[C:19]2=[CH:20][CH:21]=[CH:22][CH:23]=3)[CH3:17])[CH2:14][CH2:13][CH2:12][CH2:11]1.S>C(O)C>[CH3:1][C:2]1[CH:9]=[CH:8][CH:7]=[CH:6][C:3]=1[CH2:4][NH:5][C:32]([C:29]1[CH:28]=[CH:27][C:26]2[S:25][C:24]3[C:19](=[CH:20][CH:21]=[CH:22][CH:23]=3)[N:18]([CH:16]([CH3:17])[CH2:15][N:10]3[CH2:14][CH2:13][CH2:12][CH2:11]3)[C:31]=2[CH:30]=1)=[S:34]

Participants

5

Reactant 3

HCID 402Hydrogen SulfideHCID 69932-MethylbenzylamineHCID 1453652810-[1-(1-Pyrrolidinyl)-2-propyl]-2-phenothiazinecarbothioamide

Product 1

HCID 15925313HCID 15925313, compound

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Conditions

Temperature
20 °C

Procedure

2-Methylbenzylamine (6.0 cc) is added to a solution of 10-[(2RS)-1-(1-pyrrolidinyl)-2-propyl]-2-phenothiazinecarbothioamide (3.70 g) in absolute ethanol (50 cc). The mixture is saturated with hydrogen sulphide and brought to 110° C. for 20 hours. After cooling to 20° C., the mixture is concentrated to dryness under reduced pressure (30 mm Hg, 4 kPa) at 40° C. and the residue is purified by chromatography on a column (height: 22 cm; diameter: 4.2 cm) of silica gel (0.04-0.06 mm) with a slight excess pressure of nitrogen (40 kPa), eluting with pure ethyl acetate (400 cc) and then with a 90:10 (by volume) mixture (400 cc) of ethyl acetate and methanol and collecting 80-cc fractions. Fractions 3 to 5 are combined and concentrated to dryness under reduced pressure (30 mm Hg; 4 kPa) to give N-(2-methylbenzyl)-10- [(2RS)-1-(1-pyrrolidinyl)-2-propyl]-2-phenothiazinecarbothioamide (2.6 g) in the form of a yellow product of meringue-like consistency.

Workup

  1. concentrationthe mixture is concentrated to dryness under reduced pressure (30 mm Hg, 4 kPa) at 40° C.
  2. customthe residue is purified by chromatography on a column (height: 22 cm; diameter: 4.2 cm) of silica gel (0.04-0.06 mm) with a slight excess pressure of nitrogen (40 kPa)
  3. washeluting with pure ethyl acetate (400 cc)
  4. customwith a 90:10 (by volume) mixture (400 cc) of ethyl acetate and methanol and collecting 80-cc fractions
  5. concentrationconcentrated to dryness under reduced pressure (30 mm Hg; 4 kPa)

Sources & evidence

ORD record
ord-c8e953222526453c8038f08e3f840f51
Source dataset
uspto-grants-1991_01
Patent number
US04985419

Reaction notes

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