Synthesis of unsaturated organotrifluoroborates via Wittig and Horner-Wadsworth-Emmons olefination.

Synthesis of unsaturated organotrifluoroborates via Wittig and Horner-Wadsworth-Emmons olefination. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

Synthesis of unsaturated organotrifluoroborates via Wittig and Horner-Wadsworth-Emmons olefination. Abstract Text:

Gary A Molander,Ruth Figueroa,

The stereoselective synthesis of unsaturated organotrifluoroborates by using the Wittig and Horner-Wadsworth-Emmons olefination is described. These reactions were general for both alkyl- and aryltrifluoroborates. The synthesis of di- and trisubstituted olefins was achieved by using formyl- and acetyl-substituted organotrifluoroborates. The products were isolated in moderate to excellent yield. The Wittig reaction with nonstabilized ylides was performed under salt free conditions in most cases to obtain the Z-isomer. The E-isomer was accessed by using preformed stabilized ylides. The Horner-Wadsworth-Emmons reaction also gave the E-isomer as expected.

Synthesis of unsaturated organotrifluoroborates via Wittig and Horner-Wadsworth-Emmons olefination. Publishing Authors By Initials

GA Molander,R Figueroa,

For similar abstracts research abstracts see: abstracts research

PUBMED ID PMID:

MEDLINE DATE:

Synthesis of unsaturated organotrifluoroborates via Wittig and Horner-Wadsworth-Emmons olefination. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: The Journal of organic chemistry

VOLUME: 71

Page Numbers: 6135-40

Journal Abbreviation:

ISSN: 0022-3263

DAY: 4

MONTH: Aug

YEAR: 2006

Synthesis of unsaturated organotrifluoroborates via Wittig and Horner-Wadsworth-Emmons olefination. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 2985193

Synthesis of unsaturated organotrifluoroborates via Wittig and Horner-Wadsworth-Emmons olefination. Keywords Mesh Terms:

KEYWORDS:

MESH TERMS:

Chemical & Substance for Abstract: Synthesis of unsaturated organotrifluoroborates via Wittig and Horner-Wadsworth-Emmons olefination. Information

Substance Name:

Registry Number:

Grant and Affiliation Information for Synthesis of unsaturated organotrifluoroborates via Wittig and Horner-Wadsworth-Emmons olefination.

AFFILIATION: Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, USA. gmolandr@sas.upenn.edu

Country: United States

AGENCY:

GRANT:

ACRONYM:

MEDLINETA: J Org Chem

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

Synthesis of unsaturated organotrifluoroborates via Wittig and Horner-Wadsworth-Emmons olefination Related Publications

• A case of oral polio vaccine mistakenly given intramuscularly without ill effects.
• AIDS--1996.
• Antenatal betamethasone administration has a dual effect on adult sheep vascular reactivity.
• Autonomic Dysfunction at Rest and During Isometric Exercise in Women With Fibromyalgia: 1744: Board #32 May 31 9:00 AM 10:30 AM.
• Breaking the silence: AIDS--2000.
• Cellular expression of plasma prekallikrein in human tissues.
• HIV/AIDS in the Caribbean. The need for a more effective public health response.
• HIV/AIDS in women, infants, children and adolescents in Jamaica. A further "call to action".
• Health trends in Jamaica. Significant progress and a vision for the 21st century.
• History and evolution of Hemapheresis in Argentina.
• Legal and ethical aspects of the AIDS epidemic.
• Magnetic resonance imaging of renal abnormalities in patients with congenital osseous anomalies of the spine.
• Management of uremia in older patients: hemodialysis and renal transplantation.
• Manganese absorption and retention in humans. UCLA 12-724.
• Mild chronic hypoxia modifies the fetal sheep neural and cardiovascular responses to repeated umbilical cord occlusion.
• Need for a noninvasive technique to measure cochlear responses.
• Not Available
• Rorschach comprehensive system data for a sample of 42 nonpatient mexican american children from the United States.
• Seeking a commitment for action: AIDS--2002.
• Synthesis of unsaturated organotrifluoroborates via Wittig and Horner-Wadsworth-Emmons olefination.
• The Beckwith-Wiedemann syndrome: a longitudinal study of the macroglossia and dentofacial complex.
• The cost-utility of a care coordination/home telehealth programme for veterans with diabetes.
• The typhoid fever outbreak in Jamaica.
• Using image processing to detect and classify narrow-band cricket and frog calls.
• [CANCER OF THE STOMACH; PROGNOSIS AND TREATMENT.]
• [Correlation of biochemical and histopathological findings in acute viral hepatitis]
• [Emotional state of the pregnant woman.]
• [Friedrich Nietzsche's last lucid year.]
• [Not Available.]
• [Projections on AIDS: perspective from Jamaica]