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Asymmetric Diels ‐ Alder reactions: X‐Ray crystal‐structure analysis of [ N ‐(( E )‐But‐2‐enoyl)bornane‐10,2‐sultam]tetrachlorotitanium
Author(s) -
Oppolzer Wolfgang,
Rodriguez Inès,
Blagg Julian,
Bernardinelli Gérald
Publication year - 1989
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19890720116
Subject(s) - chemistry , octahedron , atom (system on chip) , crystal structure , crystallography , stereoselectivity , x ray , crystal (programming language) , stereochemistry , organic chemistry , catalysis , physics , quantum mechanics , computer science , embedded system , programming language
An X‐ray diffraction analysis of the crystalline complex 2b (ML n TiCl 4 ) shows a chelation of the carbonyl O‐atom and the upper SO 2 O‐atom by TiCl 4 , a slightly pyramidal N‐atom, and a π ‐face‐stereoselective shielding of the C(α)‐ Si face by the CH 2 (3) group. The Ti‐atom is in a pseudo‐octahedral environment.