6533b836fe1ef96bd12a128d

RESEARCH PRODUCT

ChemInform Abstract: Reactions of Benzothiete with Phosphorus Nucleophiles. A Novel Type of Arbuzov Rearrangement.

H.‐l. EckesHerbert MeierHans‐peter Niedermann

subject

NucleophileChemistryPhosphorusSN2 reactionIonic bondingchemistry.chemical_elementGeneral MedicineRing (chemistry)Medicinal chemistryAdduct

description

The reaction of trialkylphosphites or related P-nucleophiles with benzothiete (1) leads to zwitter ionic species, which show an Arbuzov - like rearrangement to the products 4 and 7, respectively. New heterocyclic ring systems are generated in the case of cyclic esters. The normal SN2 reaction leads to the 1:2 adducts 9, whereas in an SN1 process the 1:1 adduct 13 is formed.

https://doi.org/10.1002/chin.198929195