Proceedings of the Indian Academy of Sciences - Chemical Sciences

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Copper mediated C-C bond formation under electrochemical condition
Proceedings of the Indian Academy of Sciences - Chemical Sciences - Tập 106 - Trang 777-777 - 1994
Jubaraj Bikash Baruah
Raman effect studies in chelation
Proceedings of the Indian Academy of Sciences - Chemical Sciences - Tập 45 - Trang 47-50 - 1957
K. Ramavataram
Synthesis and reactivity of dimolybdathiaborane cluster [(Cp∗Mo)2B4SH6] (Cp∗ = η 5-C5Me5)
Proceedings of the Indian Academy of Sciences - Chemical Sciences - Tập 123 - Trang 847-851 - 2011
KIRANKUMAR VARMA CHAKRAHARI, SUNDARGOPAL GHOSH
Chemistry and reactivity of dimolybdathiaborane, [(Cp∗Mo)2B4SH6], 1, obtained from the reaction of 2-mercaptobenzothiazole, [Cp∗MoCl4] and [LiBH4.thf], has been explored with dinuclear metal carbonyl [Fe2(CO)9]. As a result, reaction of 1 with [Fe2(CO)9] yielded heterometallathiaborane, [(Cp∗Mo)2B4H6SFe(CO)3], 2 in good yield. Both the new compounds have been characterized in solution by 1H, 11B a...... hiện toàn bộ
The optical properties of titanium dioxide
Proceedings of the Indian Academy of Sciences - Chemical Sciences - Tập 35 - Trang 117-125 - 1952
T. Radhakrishnan
Dispersion formulæ valid in the visible region are offered for rutile, anatase and brookite. These incorporate a characteristic frequency at 2870 Å in all the cases. The value ofdn/dt in the three crystals are explained by large transfers of transition probability and moderate shifts towards large wave-lengths of this frequency as the temperature is raised. In addition, a calculation is made of th...... hiện toàn bộ
Kinetic studies in ester hydrolysis
Proceedings of the Indian Academy of Sciences - Chemical Sciences - Tập 32 - Trang 85-94 - 1950
P. Madhavan Nair, S. V. Anantakrishnan
The kinetics of the hydrolysis of ethyl acetate in acetone-water and dioxane-water systems are reported. The rate constant passes through a minimum when the concentration of the organic solvent in the medium is in the neighbourhood of 80%. The temperature variation conforms strictly to the Arrhenius equation even for media containing extremely high proportions of organic solvent. Even though the a...... hiện toàn bộ
Facile one-pot synthesis of functionalized organophosphonate esters via ketone insertion into bulky arylphosphites
Proceedings of the Indian Academy of Sciences - Chemical Sciences - Tập 120 - Trang 131-136 - 2008
Ramaswamy Murugavel, Subramaniam Kuppuswamy
The reaction of phosphorus trichloride with 2,6-diisopropyl phenol in the presence of LiCl under reflux conditions for 24 h produces a mixture of (ArO)PCl2 and (ArO)2PCl (Ar = 2,6-iPr2C6H3). The hydrolysis of the aryloxy compounds in acetone/H2O results in the formation of two novel phosphonate ester derivatives [(ArO)P(O)(OH)(CMe2OH)] (1) and [(ArO)2P(O)(CMe2OH)] (2), respectively in a moderate y...... hiện toàn bộ
Hysteresis in sorption—X
Proceedings of the Indian Academy of Sciences - Chemical Sciences - Tập 17 - Trang 46-49 - 1943
Kittur Subba Rao, V. R. Thiruvenkatachar
In a system of closely packed spherical particles, formation of two different types of capillaries cavities and open pores—is indicated. Assuming spherical particles of equiradius, the volume of an open pore is calculated in relation to particle radius. The total open pore is calculated in relation to particle radius. The total open pore volume just as the total cavity volume, decreases as the par...... hiện toàn bộ
On some integral properties of hypergeometric functions
Proceedings of the Indian Academy of Sciences - Chemical Sciences - Tập 74 - Trang 189-194 - 1971
V. G. Tikekar
In this note certain integrals involving hypergeometric functions have been evaluated in convenient and elegant forms.
Vanadometric estimation of germanium
Proceedings of the Indian Academy of Sciences - Chemical Sciences - - 1977
B. Venkata Narayana, N. Appala Raju
Synthesis of 1-alkyl triazolium triflate room temperature ionic liquids and their catalytic studies in multi-component Biginelli reaction
Proceedings of the Indian Academy of Sciences - Chemical Sciences - Tập 127 - Trang 1539-1545 - 2015
SANKARANARAYANAN NAGARAJAN, TANVEER M SHAIKH, ELANGO KANDASAMY
Synthesis of three Brnsted acid-based ionic liquids, namely, 1-ethyl-1,2,4-triazolium triflate (1a), 1-propyl-1,2,4-triazolium triflate (1b) and 1-butyl-1,2,4-triazolium triflate (1c), is described. These ionic liquids have been employed as catalysts for convenient and high-yielding one-pot synthesis of 3,4-dihydropyrimidin-2(1H)-ones and 3,4-dihydropyrimidin-2(1H)-thiones, which are Biginelli rea...... hiện toàn bộ
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