The base-induced rearrangement of divinylphosphine led to the corresponding 3-phospha-1,3-pentadiene, which is sufficiently stable to be detected at room temperature by 31P NMR spectroscopy. This diene was trapped by addition of 2-propanethiol to the reaction mixture. Under similar conditions, the transient 1-phospha-1,3-butadiene and 3-arsa-1,3-pentadiene were chemically trapped. Divinylstibine and
碱诱导的二
乙烯基膦的重排导致相应的3-phospha-1,3-pentadiene,其足够稳定,可以在室温下通过31 P NMR光谱检测到。通过向反应混合物中加入2-丙
硫醇来捕集该二烯。在相似的条件下,
化学捕获了瞬态的1-
磷-
1,3-丁二烯和3-arsa-
1,3-戊二烯。还制备了新化合物和stibadienes的潜在前体Divinylstibine和alenylstibine。