210970-73-3

Basic information

• Product Name: 2-[di(benzenesulfonyl)amino]-benzo-1,3,2-dioxaborol
• CAS NO: 210970-73-3
• Molecular Weight: 415.255
• Mol File: 210970-73-3.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 2-[di(benzenesulfonyl)amino]-benzo-1,3,2-dioxaborol(CAS DataBase Reference)
• NIST Chemistry Reference: 2-[di(benzenesulfonyl)amino]-benzo-1,3,2-dioxaborol(210970-73-3)
• EPA Substance Registry System: 2-[di(benzenesulfonyl)amino]-benzo-1,3,2-dioxaborol(210970-73-3)

Safety Data

• Hazardous Substances Data: 210970-73-3(Hazardous Substances Data)

Upstream product

• 108632-10-6 Ag⁽¹⁺⁾*N(SO₂C₆H₅)2^(1-)=AgN(SO₂C₆H₅)2 
• 51901-85-0 bromocatecholborane 

Relevant articles and documents

Polysulfonylamines. XCIX. The first boron(iii) di(organosulfonyl)amides: A novel B(OS)2N six-membered ring and two aminoborane structures with long B-N bonds

Ph2B[N(SO2Me)2] (1) and the benzo-1,3,2-dioxaboroles C6H4O2BN(SO2R)2, where R = Ph (2a) or Me (2b), were prepared by treating the appropriate bromoboranes with Me3SiN(SO2Me)2 and/or AgN(SO2R)2. Their crystal and molecular structures were determined by low-temperature X-ray diffraction (1: monoclinic, space group P21/n; 2a: monoclinic, P21/c; 2b: triclinic, P1, structure marred by disorder of one MeSO2 group). The B atom of 1 features a distorted tetrahedral coordination formed by the ipso-C atoms of the Ph groups and two O atoms of the 1,5-chelating (MeSO2)2N anion (B-O 156.5, 157.7pm). The resulting six-membered B(OS)2N ring adopts a boat conformation, B and N lying out of the plane of the other four atoms. In the chelate ligand, which is severely distorted from the common pseudo-C2 symmetry of the discrete anion, extremely long S-O(B) bonds (151.2, 151.7 pm) are compensated by short N-S bonds (156.1, 156.8 pm). Molecules 2a and 2b have aminoborane structures with trigonal-planar coordinations at B and N, unusually long B-N distances suggesting single bonds [2a: 147.6(3), 2b: 146.3(5) pm], and fairly short N-S bonds (2a: av. 167.4, 2b: av. 170.4 pm). In 2a the O2B plane is twisted by 70.9° vs. the NS2 plane, whereas the O2B-NS2 moiety of 2 b is approximately coplanar (twist-angle ca. 9°).