Alici, BHökelek, TÇetinkaya, EÇetinkaya, B2024-08-042024-08-0420031042-7163https://doi.org/10.1002/hc.10088https://hdl.handle.net/11616/93486C-2 deprotonation of 1,3-dibutylperimidinium bromide (1a) with sodium hydride and a catalytic amount of potassium tert-butoxide in dry THF led to the formation of the exceptionally inert tetraaminoalkene 2a. In contrast, isostructural tetrakis(2-methoxyethyl)-tetraaminoalkene (2b) instantaneously reacted with O-2 to yield urea 3b, and silver nitrate was readily reduced with 2b to form a silver mirror. Compound 2a has been characterized by X-ray diffraction studies; the naphtho-pyrimidine skeleton imposes structural constraints and some rigidity to the C=C bonding. (C) 2003 Wiley Periodicals, Inc.eninfo:eu-repo/semantics/closedAccessEnetetraminesCatalystsComplexesChemistryCarbenesArticle141828710.1002/hc.100882-s2.0-0037277589N/AWOS:000180824700013Q2