title: [Heteropolycyclic systems. V. 4-alkyl-2,3,3a,4-tetrahydro-1H-pyrro1/2,1-c/ /1,2,4/benzothiadiazin-5,5-dioxide and their bz-substituted derivatives].
abstract: The preparation of some 4-alkyl derivatives of 2,3,3a,4--tetrahydro-1H-pyrrolo(2,1-c)(1,2,4)benzothiadiazin-5,5-dioxode and bz-substituted derivatives by the action of alkyl iodides on the LiAlH4 reduction products of the corresponding 2,3-dihydro-1H-pyrrolo(2,1-c)(1,2,4)benzothiadiazin-5,5-dioxide is described. It was found that some of the substances synthesized exist in polymorphous forms and it was possible to isolate these.
mesh_terms: D001581:Benzothiadiazines / Q000138:chemical synthesis*; D009682:Magnetic Resonance Spectroscopy; D010084:Oxidation-Reduction; D011758:Pyrroles / Q000138:chemical synthesis*; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet
chemical_list: D001581:Benzothiadiazines; D011758:Pyrroles
vernacular_title: Sistemi eteropoliciclici. Nota V - 4-alchil-2,3,3a,4-tetraidro-1H-pirrolo(2,1-c)(1,2,4)benzotiadiazin-5,5-diossido e loro derivati bz-sostituiti