In:
Zeitschrift für Naturforschung B, Walter de Gruyter GmbH, Vol. 74, No. 4 ( 2019-04-24), p. 365-372
Abstract:
The reaction of [ i Pr 2 N=CHCl]Cl with 2-phenylbenzthiazolidine (Ph-BtzH) and subsequent anion metathesis afforded the formamidinium salt [(Ph-Btz)CH(N i Pr 2 )][PF 6 ] ([ 1a H][PF 6 ]). The reaction of [ 1a H][PF 6 ] with (Me 3 Si) 2 NNa in the presence of grey selenium furnished the selenourea derivative 1a Se as trapping product of the acyclic diaminocarbene 1a . In the absence of selenium, a 2 H -1,4-benzothiazine derivative ( 2 ) was obtained, which is an isomer of 1a , whose formation is plausibly initiated by deprotonation of [ 1a H] + not at the cationic N 2 CH unit, but at the neighbouring PhCH position. CO was ineffective as trapping reagent for 1a . [ 1a H][PF 6 ], 1a Se and 2 have been structurally characterised by X-ray diffraction.
Type of Medium:
Online Resource
ISSN:
1865-7117
,
0932-0776
DOI:
10.1515/znb-2019-0017
Language:
English
Publisher:
Walter de Gruyter GmbH
Publication Date:
2019
detail.hit.zdb_id:
2078109-X
detail.hit.zdb_id:
124635-5
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