Bis[(3-hydroxymethyl-5-methyl pyrazol)-1-yl Thiocarbonyl] Disulfide

Abderrahman El Idrissi, Karim Tebbji and Smaail Radi

Laboratoire de chimie organique-Physique, Faculté des Sciences, Oujda, Morocco. Fax: +212 56 50 06 03. E-mail: [email protected]

Received: 22 February 2001 / Accepted: 15 May 2001 / Published: 25 May 2001

This experiment is performed according to literature method [1-4]. To a solution of bis[(3-methoxycarbonyl-5-methyl pyrazol)-1-yl thiocarbonyl] disulfide 1 (7.3x10^-2mol) in dry diethyl ether was added a solution of LiAlH₄ (2.78 g, 7.3x10^-2mol) in 10 mL of dry ether. The mixture was stirred for 6h at 30 °C and the product was extracted with CHCl₃ dried over Na₂SO₄ and filtred. The solvent was removed under reduced pressure and the product was dried under high vacuum.

Yield: (70%).

¹H-NMR (DMSO) d (ppm): 2,16 (s, 6H, CH3); 4,33 (s, 4H, CH2); 5,86 (s, 2H CH).

¹³C-NMR (CDCl₃) d (ppm): 193 (-C=S), 65 (CH₂-OH).

IR (KBr , cm^-1): 3300 (-S-S-); 1240 (C=S).

MS (m/z): 374 [M]⁺.

U.V.: l_max = 290 nm (-C=S).

References

1. Jones, R. G.; Hanret, M. J.; Lauglin, K. M. J. Org . Chem . 1954, 19, 1428.
2. Haque, S.A.; Clouet, G. Makromol. Chem. Phys. 1994, 195, 315-327.
3. Reiser, A. Photoreactive Polymer. The Science and Technology of Resist; Wiley: New York, 1986, p. 26.
4. El Idrissi, A.; Tebbji, K.; Radi, S. Molecules 2001, 6, M232.

Sample Availability: Available from the authors and from MDPI.

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