NOPR Collection:

Isolation of a new diterpene lactone glucoside from Phlogacanthus guttatus Nees (Acanthaceae).

2016-07-20T04:36:52Z

Title: Isolation of a new diterpene lactone glucoside from Phlogacanthus guttatus Nees (Acanthaceae). Authors: Yadav, R D; Kataky, J C S; Mathur, R K Abstract: Guttoside, a naturally manipulated andrographolide glucoside has been isolated from Phlogacanthuss guttatus Nees (Acanthaceae) made available from humid rain forest of Arunachal Pradesh, India. The structure of the new compound has been elucidated on the basis of elemental analysis and spectral data. Page(s): 248-250

A facile procedure for reduction of azides to amines with aluminium triiodide

2016-07-20T06:10:55Z

Title: A facile procedure for reduction of azides to amines with aluminium triiodide Authors: Barua, Apurba; Bez, Ghanashyam; Barua, Nabin C Abstract: It has been demonstrated that a wide variety of aromatic and aliphatic azides can be efficiently reduced to the corresponding amines in good yields with freshly prepared aluminium triiodide. Other functional groups such as ether, ester, nitro and halides remain uneffected. Page(s): 128-129

Bis(1-benzyl-4-aza-1-azonia-bicyclo[2.2.2]octane) persulfate: A mild and efficient oxidant for cleavage of oxime double bonds under anhydrous conditions

2016-07-20T04:20:42Z

Title: Bis(1-benzyl-4-aza-1-azonia-bicyclo[2.2.2]octane) persulfate: A mild and efficient oxidant for cleavage of oxime double bonds under anhydrous conditions Authors: Hajipour, A R; Mohammadpoor -Baltork, I; Kianfar, G Abstract: Bis( 1-benzyl-4-aza-1-azoniabicyclo[2.2.2]octane)persulfate (BAABCPS) 1 readily prepared as orange solid from commercially available 1,4-diazabicyclo[2.2.2]octane (DABCO) and potassium persulfate, converts oximes and a-sulfinyl oximes to the corresponding carbonyl compounds and β-keto sulfoxides respectively, the yields and enantiomeric purity are excellent. Page(s): 221-224

Studies on the Himalayan yew Taxus wallichiana: Part VI — Isolation of nontaxoid constituents

2016-07-20T04:22:13Z

Title: Studies on the Himalayan yew Taxus wallichiana: Part VI — Isolation of nontaxoid constituents Authors: Chattopadhyay, S K; Kulshrestha, M; Saha, G C; Tripathi, V; Sharma, R P Abstract: Chemical investigation on the stem bark of Taxus wallichiana results in the isolation of a rare phenyl propanoid 2-(3,4- methylenedioxyphenyl )- propane- 1,3-diol 1 and (+)catechin 3. These compounds have been characterized on the basis of their spectral characteristics. Page(s): 246-247