Polymeric anhydrous sodium 2-aminobenzensulfonate

Abstract

Key indicatorsSingle-crystal X-ray study T = 298 K Mean '(C±C) = 0.006 A Ê R factor = 0.040 wR factor = 0.153 Data-to-parameter ratio = 15.5For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.

Poly[μ5-(4-methoxybenzenesulfonato)-sodium]

“…The O-Na-O bond angles in the equatorial plane are in the range 56.76 (5)-85.88 (6) ° and the axial angle is 158.12 (7)°. These values are comparable to those reported for another Na-O donor complex (Smith et al, 2004). The overall structure is a two-dimensional polymer parallel to (001) (Fig.…”

“…For the appplications of aromatic sulfonic acids, see: Babu et al (2003); Chanawanno et al (2010); King (1991); Ruanwas et al (2010); Schö ngut et al (2011); Siril et al (2007); Taylor et al (2006). For a related structure, see: Smith et al (2004). For standard bond-lengths, see: Allen et al (1987).…”

Development of phosphinimine-sulfonate ligands for late metal catalysis.

“…As is shown in Scheme 2.2, toluidine-2-sulfonic acid (1) was converted to sodium toluidine-2sulfonate (2) with a yield of 98%. 29 The deprotonation of the sulfonic acid was performed by boiling 1 in diluted aqueous solution of NaOH. complex (4a).…”

“…Non-reactivity apparently relates to the disfavored steric hindrance from either (o-tolyl) 3 P or (1-naphthyl) 3 P. Mechanistically, Staudinger reaction is initiated by the nucleophilic attack of triarylphosphine on the terminal nitrogen with partial positive charge (Scheme 2.9). 45 The resulting phosphonium-amide zwitterions (27) ring-closes presumably to form a 4-membered ring intermediate (28), which can undergo 2,2-σ migration to extrude N 2 and form the P=N double bond which can resonate to its aza-ylide structure (29). However, in the case of (o-tolyl) 3 P or (1-naphthyl) 3 P, too much The steric bulk of phosphines can be quantitatively described using Toman cone angles.…”