NOPR Collection:http://nopr.niscpr.res.in/handle/123456789/60052026-10-10T05:08:41Z2026-10-10T05:08:41Z<span style="color:black;mso-bidi-language:HI">New taraxerane esters from <i>Hibiscus schizopetalus </i>leaves </span>Jose, E AVijayan, K Khttp://nopr.niscpr.res.in/handle/123456789/307032016-07-20T05:34:44Z2006-05-01T00:00:00ZTitle: <span style="color:black;mso-bidi-language:HI">New taraxerane esters from <i>Hibiscus schizopetalus </i>leaves </span>
Authors: Jose, E A; Vijayan, K K
Abstract: <span style="color:black;mso-bidi-language:HI">Two new triterpene esters<span style="color:#0A0A0A;mso-bidi-language:HI">, <span style="color:black;
mso-bidi-language:HI">named 22-hydroxytaraxeryl acetate <b>1</b> and 22-hydroxytara<span style="color:#0A0A0A;mso-bidi-language:HI">x<span style="color:black;
mso-bidi-language:HI">eryl-<i>cis</i>-p-coumarate <b>2</b>, ha<span style="color:#0A0A0A;mso-bidi-language:HI">v<span style="color:black;
mso-bidi-language:HI">e been isolated from the leaves of <i>Hibiscus </i><i><span style="color:#0A0A0A;mso-bidi-language:HI">s</span></i><i><span style="color:black;mso-bidi-language:HI">chiiopetalus</span></i><i><span style="color:#0A0A0A;mso-bidi-language:HI">. </span></i><span style="color:
black;mso-bidi-language:HI">Their structures have been determ<span style="color:#0A0A0A;mso-bidi-language:HI">i<span style="color:black;
mso-bidi-language:HI">ned by spectroscopic methods and
<span style="color:black;mso-bidi-language:HI">chemical reactions<span style="color:#0A0A0A;mso-bidi-language:HI">.
</span></span></span></span></span></span></span></span></span></span></span></span>
Page(s): 1328-13312006-05-01T00:00:00ZThermal condensation of 3-trifluoromethyl- /and 3-arnino-l-phenyl-2-pyrazotin-5-ones with aromatic aldehydes. Synthesis of 4-arylidene-pyrazolones and pyrazolopyranopyrazolesSobahi, Tariq Rhttp://nopr.niscpr.res.in/handle/123456789/307022016-07-20T05:51:10Z2006-05-01T00:00:00ZTitle: Thermal condensation of 3-trifluoromethyl- /and 3-arnino-l-phenyl-2-pyrazotin-5-ones with aromatic aldehydes. Synthesis of 4-arylidene-pyrazolones and pyrazolopyranopyrazoles
Authors: Sobahi, Tariq R
Abstract: <span style="color:black;mso-bidi-language:HI">1-Phenyl-3-trifluoromethyl-2-pyrazolin-5-one
<b>1</b> on heating with aromatic aldehydes at 160-70<span style="color:#252525;mso-bidi-language:HI">°<span style="color:black;
mso-bidi-language:HI">C affords the corresponding 4- arylidene-2-pyrazolin-5-ones
<b>3.</b> while 3-amino-l-phenyl-2- pyrazolin-5-one <b>2</b> on heating with
aldehydes gives pyrazolopyranopyrazole derivatives <b>4</b> with high yields<span style="color:#252525;mso-bidi-language:HI">. <span style="color:black;
mso-bidi-language:HI">These new products have been characterized by
spectroscopic techniques and elemental analysis<span style="color:#252525;
mso-bidi-language:HI">.
</span></span></span></span></span></span>
Page(s): 1315-13182006-05-01T00:00:00ZA rapid and high-yield synthesis of aryloxyacetic acid in one pot under microwave irradiation and phase transfer catalysis conditionsWei, Tai-BaoLiu, HongLi, Man-LinZhang, You-Minghttp://nopr.niscpr.res.in/handle/123456789/307012016-07-20T05:49:47Z2006-05-01T00:00:00ZTitle: A rapid and high-yield synthesis of aryloxyacetic acid in one pot under microwave irradiation and phase transfer catalysis conditions
Authors: Wei, Tai-Bao; Liu, Hong; Li, Man-Lin; Zhang, You-Ming
Abstract: <span style="color:black;mso-bidi-language:HI">A <span style="color:#171717;
mso-bidi-language:HI">se<span style="color:black;mso-bidi-language:HI">ries
of ar<span style="color:#171717;mso-bidi-language:HI">y<span style="color:black;mso-bidi-language:HI">lo<span style="color:#171717;
mso-bidi-language:HI">xy<span style="color:black;mso-bidi-language:HI">aceti<span style="color:#171717;mso-bidi-language:HI">c <span style="color:black;
mso-bidi-language:HI">acid <b>3a-h</b> ha<span style="color:#171717;
mso-bidi-language:HI">s <span style="color:black;mso-bidi-language:HI">be<span style="color:#171717;mso-bidi-language:HI">e<span style="color:black;
mso-bidi-language:HI">n <span style="color:#171717;mso-bidi-language:
HI">s<span style="color:black;mso-bidi-language:HI">ynthe<span style="color:#2D2D2D;mso-bidi-language:HI">s<span style="color:black;
mso-bidi-language:HI">ized in on<span style="color:#171717;mso-bidi-language:
HI">e <span style="color:black;mso-bidi-language:HI">pot under m<span style="color:#171717;mso-bidi-language:HI">i<span style="color:black;
mso-bidi-language:HI">crowave irradiation and phase transfer cataly<span style="color:#2D2D2D;mso-bidi-language:HI">s<span style="color:black;
mso-bidi-language:HI">i<span style="color:#171717;mso-bidi-language:
HI">s <span style="color:black;mso-bidi-language:HI">conditions. By the
optimizati<span style="color:#171717;mso-bidi-language:HI">o<span style="color:black;mso-bidi-language:HI">n of the reaction condition<span style="color:#2D2D2D;mso-bidi-language:HI">, <span style="color:black;
mso-bidi-language:HI">a rapid<span style="color:#171717;mso-bidi-language:
HI">, <span style="color:black;mso-bidi-language:HI">hi<span style="color:#171717;mso-bidi-language:HI">g<span style="color:black;
mso-bidi-language:HI">h-<span style="color:#171717;mso-bidi-language:
HI">y<span style="color:black;mso-bidi-language:HI">i<span style="color:#171717;mso-bidi-language:HI">e<span style="color:black;
mso-bidi-language:HI">ld and effi<span style="color:#171717;mso-bidi-language:
HI">c<span style="color:black;mso-bidi-language:HI">i<span style="color:#171717;mso-bidi-language:HI">e<span style="color:black;
mso-bidi-language:HI">nt meth<span style="color:#171717;mso-bidi-language:
HI">o<span style="color:black;mso-bidi-language:HI">d for the
preparation <span style="color:#171717;mso-bidi-language:HI">o<span style="color:black;mso-bidi-language:HI">f ar<span style="color:#171717;
mso-bidi-language:HI">y<span style="color:black;mso-bidi-language:HI">lox<span style="color:#2D2D2D;mso-bidi-language:HI">y<span style="color:black;
mso-bidi-language:HI">a<span style="color:#171717;mso-bidi-language:
HI">ce<span style="color:black;mso-bidi-language:HI">tic acid i<span style="color:#2D2D2D;mso-bidi-language:HI">s <span style="color:black;
mso-bidi-language:HI">reported<span style="color:#171717;mso-bidi-language:
HI">.
</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>
Page(s): 1312-13142006-05-01T00:00:00ZFacile water mediated chemo-selective synthesis of anilines from nitroarenes using triethylammonium formateSridhara, M BSrinivasa, G RGowda, D Channehttp://nopr.niscpr.res.in/handle/123456789/307002016-07-20T05:48:37Z2006-05-01T00:00:00ZTitle: Facile water mediated chemo-selective synthesis of anilines from nitroarenes using triethylammonium formate
Authors: Sridhara, M B; Srinivasa, G R; Gowda, D Channe
Abstract: <span style="mso-bidi-language:HI">A simple and efficient protocol for the
chemo-selective reduction of substituted nitroarenes to corresponding anilines
in good yields using inexpensive commercial zinc dust and triethylammonium
formate in water at ambient temperature and pressure is established. Many other
reducible functional groups like methoxy, methyl, ester, nitrile, amide, acid,
phenol and halogens are unaltered with the present systems.
</span>
Page(s): 1304-13072006-05-01T00:00:00Z