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Träfflista för sökning "WFRF:(Kaiser M) srt2:(2000-2004)"

Sökning: WFRF:(Kaiser M) > (2000-2004)

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  • Kaiser, N F K, et al. (författare)
  • Microwave-mediated palladium-catalyzed asymmetric allylic alkylation; an example of highly selective fast chemistry
  • 2000
  • Ingår i: Journal of Organometallic Chemistry. - Royal Inst Technol, Dept Chem Organ Chem, SE-10044 Stockholm, Sweden. Univ Uppsala, Uppsala Biomed Ctr, Dept Organ Pharmaceut Chem, SE-75123 Uppsala, Sweden.. - 0022-328X .- 1872-8561. ; 603:1, s. 2-5
  • Tidskriftsartikel (refereegranskat)abstract
    • Highly enantioselective palladium-catalyzed microwave-mediated fast chemistry has been performed on dimethyl malonate alkylation of(rac)-1,3-diphenylallyl-1-acetate (1). Utilizing the recently developed palladium-phosphineoxazoline catalytic system, with general stability at elevated temperatures (less than or equal to 145 degrees C), quantitative yields of greater than or equal to 97% and ee values of up to >99% were obtained after very short irradiation times (15-300 s, TOF up to 7000 h(-1)). (C) 2000 Elsevier Science S.A. All rights reserved.
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  • da Silva, G. M., et al. (författare)
  • The effect of diverticular disease on the colonic J pouch
  • 2004
  • Ingår i: Colorectal disease. - 1462-8910. ; 6:3, s. 171-5
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: The aim of this study was to assess the impact of the diverticular disease (DD) on function and on postoperative complications of the colonic J-pouch (CJP) with pouch-anal anastomosis. METHODS: Patients who underwent a CJP between December 1990 and August 2001, were retrospectively reviewed. The presence of DD in the CJP was assessed on pouchogram prior to ileostomy closure. A questionnaire designed to evaluate the degree of continence (total incontinence score (IS): 0 = worst, 20 = best) and pouch evacuation (total evacuation score (ES): 0 = worst, 28 = best) was used for comparison between patients with DD and those without DD (NDD). RESULTS: Sixty-six patients (47 males; 19 females) with a median age of 68 years (range 28-87 years) were included. The median follow-up period was 22 months (range 2-106 months). Twenty-four patients comprised the DD group and 42 were in the NDD group. The two groups were comparable for age, gender and time from ileostomy closure; all patients with postoperative chemoradiation therapy were in the NDD group. The total ES and IS total did not significantly differ between the two groups with a P-value of 0.11 and 0.09 respectively. Furthermore, there was no significant difference in the total incidence of pouch complications between the two groups (3 strictures, 1 leak, 1 fistula in the NDD group vs. 1 pelvic sepsis in the DD group; P = 0.4). CONCLUSIONS: The presence of DD in a CJP does not seem to impact pouch function or the postoperative complication rate.
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  • Bremberg, U, et al. (författare)
  • Rapid and stereoselective C-C, C-O, C-N and C-S couplings via microwave accelerated palladium-catalyzed allylic substitutions
  • 2000
  • Ingår i: Synthesis (Stuttgart). - Uppsala Univ, Uppsala Biomed Ctr, Dept Organ Pharmaceut Chem, SE-75123 Uppsala, Sweden. Royal Inst Technol, Dept Chem, SE-10044 Stockholm, Sweden.. - 0039-7881 .- 1437-210X. ; :7, s. 1004-1008
  • Tidskriftsartikel (refereegranskat)abstract
    • Palladium-catalyzed substitution of cyclohex-2-en-1-yl ethyl carbonate with neutral C-, O-, and N-nucleophiles was achieved in 1-2 minutes using microwave flash hearing. Enantioselectivities up to 96% were observed. Ionic nucleophiles tended to result in lower ee. With S-nucleophiles problems with the stability of the nucleophile were encountered.
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  • Resultat 1-10 av 27
  • [1]23Nästa

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