ISSN:
0009-2940
Keywords:
λ51-Phosphirenes, imino-
;
λ51-Phosphaspiro[2.2]pentanes, imino
;
Imines
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Synthesis and Structure of Phosphirene Imines and Iminophosphaspiro[2.2]pentanesThe reaction of the iminophosphanes R1P=NR2=[1, R2=2,4,6-tBu3C6H2;R1=Me (a) Et (b), PhCH=CH (c), Cl (d); R2=tBu, R1=Et3C (e)] with the alkynes R3C ≡ CR4 [2, R3=R4=Ph (a), CO2Me (b)] affords the corresponding phosphirene imines 3a - g. A [2 + 1] cycloadduct 3h is also formed in the reaction of the alkyne 2c (R3=H, R4=Ph) with 1d, while in the case of 1b the 1,2-addition product 4 is obtained. As demonstrated by the [2 + 1] cycloaddition reaction of the P1-alkylated iminophosphanes 1a, b with methylene-cyclopropanes 5a, b, the formation of the iminophosphaspiro[2.2]pentanes 6a, b is observed. The structures of the P/C heterocycles 3a, b and 6b have been determined by NMR spectroscopy and X-ray analysis.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19931260315
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