## Abstract magnified image A variety of substituted spiro(benzoisothiazole‐pyrazoles) have been prepared by the condensation of dilithiated __C__(α),__N__‐carboalkoxyhydrazones with lithiated methyl 2‐(aminosulfonyl)benzoate followed by the cyclization of intermediates with acetic anhydride, whic
Synthesis and Crystal Structure Determination of Methyl 2-acetyl-5′-phenyl-2H-spiro[benzo[d]isothiazole-3,3′-pyrazole]-1,1-dioxide-2′(4′H)-carboxylate and Methyl 2-acetyl-5′-(2-thienyl)-2H-spiro[benzo[d]isothiazole-3,3′-pyrazole]-1,1-dioxide-2′(4′H)-carboxylate
✍ Scribed by Clyde R. Metz; John D. Knight; Anna C. Dawsey; William T. Pennington; Donald G. VanDerveer; Jordan B. Brown; Kevin J. Bigham; Charles F. Beam
- Publisher
- Springer
- Year
- 2009
- Tongue
- English
- Weight
- 692 KB
- Volume
- 40
- Category
- Article
- ISSN
- 1572-8854
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Single-crystal X-ray study T = 183 K Mean '(C±C) = 0.004 A Ê R factor = 0.073 wR factor = 0.192 Data-to-parameter ratio = 12.1 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.
In the paper by Fun, Wang, Xu, Li & Zhang [Acta Cryst. (2003), E59, o1827±o1829], two errors are corrected. First, in the second paragraph of the Comment, `C8ÐC13' on line 6 should read `C2ÐC13'. Secondly, in the third paragraph of the Comment, `the O3/C11/N2/C13 plane' on line 4 should read `the C1