“…Infrared examination of diethanolamine arylboronates (p-CHsCgEB-, p-CHaOCeH*-, p-BrCgEU-, m-02NC6H4-, and CeH6-) supported the view that these compounds exhibited transannular cyclization, as shown in formula XVII (251). CHa-* (66,361) CaHa- (111,112,113,308) 71-C3H7-107 (SO, 177,190,220,308,320) n-CaHe-92-94 (12,116,168,263,320) >-C.Hs-112 (157,177,190,320) t-CaHa-113 (157,169,193) n-CsHu-93-94 (116,263,320) t-CsHn-101 (177) 169 (190) n-CeHia-…”