Discovery of 1,5-Diphenylpenta-1,4-dien-3-one

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Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments. SDS of cas: 538-58-9. Introducing a new discovery about 538-58-9, Name is 1,5-Diphenylpenta-1,4-dien-3-one

Preparation of N,N-bis(trimethylsilyl)-1-alkenesulfenamides and their desilylative conversion to 1-alkenesulfenimines. New stable 1-alkenesulfenic acid derivatives

Eight stable N,N-bis(trimethylsilyl)-1-alkenesulfenamides (3) were synthesized by the reaction of 1-alkenesulfenate anions with TMSCI and LiHMDS. Compounds 3 were isolated either by distillation or by chromatography. 1-Alkenesulfenamides (3) can be desilylated in the presence of aldehydes and ketones that do not bear alpha- hydrogens, to afford 1-alkenesulfenimines (7) either as single isomers or as mixtures of geometric isomers about the C=N bond. Protodesilylation of compounds 3 leads to 1-alkenesulfenamides (8) that have only hydrogens on the nitrogen. The parent 1- alkenesulfenamides 8 are not particularly stable, but could be characterized.

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Reference£º
Synthesis and Crystal Structure of a Chiral?C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur¨Cnitrogen¨Coxygen ligand derived from aminothiourea and sodium?D-camphor-¦Â-sulfonate