1.
Am Surg
; 76(2): 225-7, 2010 Feb.
Article
in English
| MEDLINE
| ID: mdl-20336910
Subject(s)
Aortic Aneurysm, Abdominal/surgery , Discitis/complications , Epidural Abscess/etiology , Osteomyelitis/complications , Thoracic Vertebrae , Vascular Surgical Procedures/adverse effects , Aged , Diagnosis, Differential , Discitis/diagnosis , Epidural Abscess/diagnosis , Follow-Up Studies , Humans , Magnetic Resonance Imaging , Male , Osteomyelitis/diagnosis , Postoperative Complications , Tomography, X-Ray Computed
2.
J Org Chem
; 67(15): 5202-7, 2002 Jul 26.
Article
in English
| MEDLINE
| ID: mdl-12126407
ABSTRACT
Acetals are obtained in good yields by treatment of aldehydes and ketones with trialkyl orthoformate and the corresponding alcohol in the presence of 0.1 mol % Bi(OTf)3.4H2O. A simple procedure for the formation of acetals of diaryl ketones has also been developed. The conversion of carbonyl compounds to the corresponding 1,3-dioxolane using ethylene glycol is also catalyzed by Bi(OTf)3.4H2O (1 mol %). Two methods, both of which avoid the use of benzene, have been developed.