Tetrahedron letters

Direct synthesis of dithioketals from N, N-dialkylhydrazones

E Díez, AM López, C Pareja, E Martín, R Fernández…

Index: Diez, Elena; Lopez, Ana M.; Pareja, Carmen; Martin, Eloisa; Fernandez, Rosario; Lassaletta, Jose M. Tetrahedron Letters, 1998 , vol. 39, # 43 p. 7955 - 7958

Full Text: HTML

Citation Number: 25

Abstract

Direct dithioketalisation of N, N-dialkylhydrazones promoted by BF3· Et2O or p-TsOH and 1, 2-ethanedithiol in dry medium affords the corresponding dithiolanes in nearly quantitative yields. A variety of hydrazones derived from several kinds of aldehydes (aliphatic, aromatic, and α, β-unsaturated) and hydrazines [N, N-dimethylhydrazine, 1-aminopyrrolidine, and (S)- 1-amino-2-(methoxymethyl) pyrrolidine (SAMP)] were reacted, indicating the generality of ...

Related Articles:

Perchloric acid adsorbed on silica gel (HClO4-SiO2) as an extremely efficient and reusable catalyst for 1, 3-dithiolane/dithiane formation

[Rudrawar, Santosh; Besra, Ram C.; Chakraborti, Asit K. Synthesis, 2006 , # 16 p. 2767 - 2771]

INFONA-science communication portal

[Bandgar, Babasaheb P.; Joshi, Neeta S.; Bettigeri, Sampada V. Monatshefte fur Chemie, 2007 , vol. 138, # 1 p. 67 - 71]

Chemoselective thioacetalisation and transthioacetalisation of carbonyl compounds catalysed by tetrabutylammonium tribromide (TBATB)

[Naik, Sarala; Gopinath, Rangam; Goswami, Mousumi; Patel, Bhisma K. Organic and Biomolecular Chemistry, 2004 , vol. 2, # 11 p. 1670 - 1677]

INFONA-science communication portal

[Bandgar, Babasaheb P.; Joshi, Neeta S.; Bettigeri, Sampada V. Monatshefte fur Chemie, 2007 , vol. 138, # 1 p. 67 - 71]

Transdithioacetalization of acetals, ketals, oximes, enamines and tosylhydrazones catalysed by natural kaolinitic clay

[Jnaneshwara; Barhate; Sudalai; Deshpande; Wakharkar; Gajare; Shingare; Sukumar Journal of the Chemical Society - Perkin Transactions 1, 1998 , # 5 p. 965 - 968]

More Articles...