Tetrahedron Letters p. 5947 - 5950 (1992)
Update date:2022-07-31
Topics:
Krebs
Franken
Muller
Colberg
Cholcha
Wilken
Ohrenberg
Albrecht
Weiss
Tetra-tert.butylpyrazole (4) and tetra-tert.butylthiophene (11) were prepared starting from the seven membered cycloalkyne 1 and a reductive desulfurization in the last step. Some reactions of 4 and 11 are described. X-ray structural analyses of 11 and the corresponding S,S-dioxide were carried out.
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Doi:10.1021/jo00938a024
(1974)Doi:10.1016/0022-328X(83)80228-9
(1983)Doi:10.1002/jhet.5570390630
(2002)Doi:10.1021/ac60197a002
(1963)Doi:10.1021/jo00940a011
(1974)Doi:10.1016/S0020-1693(00)81925-8
(1976)
