1991
DOI: 10.1002/cber.19911240538
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Organophosphorverbindungen, 48. 1‐Halogen‐1H‐phosphirene aus Phosphaalkinen und Halogencarbenen

Abstract: Organophosphorus Compounds, 48 '). -1-Halogen-lZf-phosphirenes from Phosphaalkynes and ChlorocarbenesHalogen-substituted carbenes (?a -i), generated by thermolysis of diazirines (lla-i), add onto phosphaalkynes (8a-c) to form the title compounds (10a-1)-Initially formed 2H-phosphirenes (9) could not be detected as their subsequent conversion to the 1H-isomers 10 by a 1,3-halogen shift is very fast.Hydrolysis of lOc,e,g p i and k yields vinylphosphonous acids (17 a -e). Aktuelle Entwicklungen in der Chemie des … Show more

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Cited by 35 publications
(13 citation statements)
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“…Beschrieben sind [2+1]‐Cycloadditionen mit Carbenen,98 Silylenen,99 Germylenen,100 Phosphinidenen101 und terminalen Phosphinidenkomplexen 102. Cycloadditionen von Chlorcarbenen98a,b wurden zur Synthese von 1‐Chlorphosphirenen genutzt [Gl. (36) ].…”
Section: Phosphaalkineunclassified
“…Beschrieben sind [2+1]‐Cycloadditionen mit Carbenen,98 Silylenen,99 Germylenen,100 Phosphinidenen101 und terminalen Phosphinidenkomplexen 102. Cycloadditionen von Chlorcarbenen98a,b wurden zur Synthese von 1‐Chlorphosphirenen genutzt [Gl. (36) ].…”
Section: Phosphaalkineunclassified
“…[7] In this way, for example, the syntheses of cyano-, azido-, imido-, and phosphaalkene-substituted 1H-phosphirenes became possible. [1,2,7,8] Reactions with organometallic compounds, such as 2 a and 2 b, proceed under formation of lithium chloride to afford the 1-silyl-and 1-germyl-1H-phosphirenes 3 a and 3 b, respectively (Scheme 1). [8,9] Scheme 1.…”
Section: Introductionmentioning
confidence: 99%
“…[1,2] In these reactions the corresponding 2H-phosphirenes must be considered as intermediates that undergo a rapid 1,3-chlorine shift to afford the thermodynamically more favorable 1H-phosphirenes. [3] In the meantime, the enormous synthetic potential of the 1-chloro-1H-phosphirenes has been investigated intensively and has been the subject of several review articles.…”
Section: Introductionmentioning
confidence: 99%
“…Mathey et al [15] have commented on the suitability of 1-chlorophosphirenes as synthetic precursors to phosphirenyl systems but treatment of chlorophosphirenes with metal salts containing [BF 4 -] or [BPh 4 -] anions led instead to the production of the fluoro-or phenyl-substituted phosphirenes by abstraction reactions from the respective counteranions (Fig. 8).…”
mentioning
confidence: 97%