Synthesis and tastant properties of disulfamates. Multisulfamation studies

Abstract

Twenty four disulfamates, one trisulfamate, two tetrasulfamates and two monosulfamates have been made. The disulfamates are of two types: RN(SO 3 Na) 2 (Type A, compounds 1-20) and NaO 3 S(H)NRЈN(H)SO 3 Na (Type B, compounds 21-24) and all except three (which had not been tasted) are new materials. The positions of the -SO 3 Na groups in compounds 21-23 have been established by the use of model compounds (e.g. parent amines, appropriate monosulfamates) and 13 C-NMR. Some multisulfamation synthesis leading to compounds 25-27 has been carried out. Taste data have been obtained for almost all the sulfamates made and the significance of these in relation to structure-taste studies for sulfamate sweeteners is discussed. In particular, the possibility that the entity CHN(R)SO 3 Ϫ might function as a hydrogen source in the Shallenberger-Acree, multicomponent attachment and α-helical protein receptor mechanisms has been examined.

Sulfamic Acid and Its N- and O-Substituted Derivatives

“…98 A series of 24 disulfamates, RN(SO 3 Na) 2 , and a few tri-and tetrasulfamates have been reported. 99 2.6.2. Aryl-and Heterosulfamates.…”

“…The corresponding oxa analogs (oxygen replacing sulfur) are not sweet . A series of 24 disulfamates, RN(SO 3 Na) 2 , and a few tri- and tetrasulfamates have been reported …”