77670-15-6Relevant academic research and scientific papers
A novel entry into 1,2,3,4,5,6-hexahydro-3-benzazocine-4,6-dione and 2-substituted-2,5,6,7-tetrahydro-4-benzazonine-1,3-(4H)-dione
Lal, Bansi,Bhedi,Gidwani, Ramesh M.,Sankar
, p. 9167 - 9174 (2007/10/02)
2-substituted-1,2,3,4,5,6-hexahydro-3-benzazocine-4, 6-diones (1a-d) and 2-methoxy-2,5,6,7-tetrahydro-4-benzazonine-1,3-dione 8 were synthesized through an oxidative ring expansion reaction of 6-methylthio-7 substituted-benzo[a] octem (2a-d) and 7-methylt
STEREOSPECIFIC SYNTHESIS OF SOME POLYCYCLIC CIS-β-LACTAMS
Sharma, S. D.,Mehra, Usha,Gupta, P. K.
, p. 3427 - 3430 (2007/10/02)
Amides 1 on reaction with P2S5 in pyridine give thioamides 2 which on treatment with methyl iodide afford the corresponding 1-methylthio-3,4-dihydroisoquinolines 3.Annelation of these imines with phenoxyacetyl chloride in the presence of triethylamine furnish 6-methylthio-7-phenoxy-2',3'-dimethoxybenzooctem 4a and 6-methylthio-7-phenoxy-2',3'-methylenedioxybenzooctem 4b respectively.Desulphurisation of these β-methylthio-β-lactams with Raney nickel yield the novel polycylic cis-β-lactams 5a and 5b.
