Structural investigations of ylides. Part VI. Crystal and molecular structures of two resonance-stabilized Wittig reagents 2-carboxy-1-methoxycarbonylethyltriphenylphosphorane and its t-butyl ester

1975 ◽  
pp. 1030 ◽  
Author(s):  
A. Forbes Cameron ◽  
Fergus D. Duncanson ◽  
Andrew A. Freer ◽  
Victor W. Armstrong ◽  
Robert Ramage
Keyword(s):  
Butyl Ester ◽  
Molecular Structures ◽  
Structural Investigations ◽  
Crystal And Molecular Structures

Strukturuntersuchungen an Vierringsystemen, III* Kristall- und Molekülstrukturen von trans-2.4-Bis(trimethylsilyl)-2.4-dihydro- 1.3-dithietan-1.1.3.3-tetroxid, 2.2.4.4-Tetramethyl-3-pyrrolidinocyclobutanon und 2.2.4.4-Tetramethyl-1-phenyl-3-pyrrolidinoeyelobutanol/Structural Investigations on Four-Membered Ring Systems, III* Crystal and Molecular Structures of trans-2,4-Bis(trimethylsilyl)-2,4-dihydro-1,3-dithietane-1,1,3,3-tetroxide, 2,2,4,4-Tetramethyl-3-pyrrolidinocyclobutanone and 2,2,4,4-Tetramethyl-1-phenyl-3-pyrrolidinocyclobutanol

1982 ◽  
Vol 37 (8) ◽  
pp. 1005-1013 ◽  
Author(s):  
Barbara Balbach ◽  
Reinhold Alt ◽  
Manfred L. Ziegler
Keyword(s):  
Phenyl Group ◽  
Molecular Structures ◽  
Hydroxyl Group ◽  
Equatorial Position ◽  
Pyrrolidine Ring ◽  
Structural Investigations ◽  
X Ray ◽  
Crystal And Molecular Structures ◽  
In Trans ◽  
Ray Methods

Abstract The molecular structures of the title compounds have been determined by X-ray methods. In the bis(trimethylsilyl) substituted dithietane the (CH3)3Si groups are in trans position; the C2S2-ring is planar. In the cyclobutanone the pyrrolidine group occupies an equatorial position, as does the phenyl group in the cyclobutanol. In the latter the hydroxyl group is trans to the pyrrolidine ring. The four-membered carbon rings are folded.

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