No the phenethylamine act here in the UK dose not cover substituting at the beta position. This is how all the cathinone analouge where legal until they passed the cathinone act last month. So I'm sure beta-deutro phenethlamines would not be covered like the beta ketones weren't.
Here is the cathinone act. My kemistry isnt brillant but I don't think it with catch beta-D's?
"Any compound (not being bupropion or a substance for the time being specified in paragraph 2.2) structurally derived from 2-amino-1-phenyl-1-propanone by modification in any of the following ways, that is to say,
(i) by substitution in the phenyl ring to any extent with alkyl, alkoxy, alkylenedioxy, haloalkyl or halide substituents, whether or not further substituted in the phenyl ring by one or more other univalent substituents;
(ii) by substitution at the 3-position with an alkyl substituent;
(iii) by substitution at the nitrogen atom with alkyl or dialkyl groups, or by inclusion of the nitrogen atom in a cyclic structure."
Can someone chime in on this?