We have developed catalytic allylation reactions of sulfonylimidates using allylic alcohols as allylating reagents. Stoichiometric amounts of neither activators nor bases are required in this reaction.

Although considerable work has been done on the formation of acetylmethylcarbinol by Aerobacter, except for the work of Koser (1918), O'Meara (1931), and Reynolds and Werkman (1937a,b), those studies employing cultures of growing cells were done in complex, chemically undefined media which tend to obscure the underlying chemical reaction. In the present study, intact, washed Aerobacter cells we...

The paper covers the principles and design aspects of cylindrical bins for the storage and reclaimation of bagasse. The system described (fig. 1) was originally designed and drawn up by the author in 1963 for the Mossman sugar mill. The design was not adopted, favour being given to the more conventional rectangular system with travelling suspended reclaimer. The first circular system, with a ca...

Water is a major constituent of food products even if it is present at a trace level as in white crystalline sugar. Molecular interactions between sugar and water are at the origin of structural as well as mechanical properties (density, compressibility, flow) of bulk sugar. Conditioning of white sugar is therefore difficult because it is sensitive to relative humidity and temperature of surrou...

The base-catalyzed allylic borylation of tertiary allylic alcohols allows the synthesis of 1,1-disubstituted allyl boronates, in moderate to high yield. The unexpected tandem performance of the Lewis acid-base adduct, [Hbase](+) [MeO-B2 pin2 ](-) favored the formation of 1,2,3-triborylated species from the tertiary allylic alcohols and 1-propargylic cyclohexanol at 90 °C.

general combining ability of sugar beet parents were determined for different quantity and quality characteristics.forty six sugar beet hybrids obtained from crosses of 23 diploid pollinators with two male sterile parents as tester together with three checks were evaluated for 10 important agronomic and technological characters at kamalshar research station in karaj in 2004.experiment was carri...

Sisal leaves which constitute only 2% of the sisal plant have been used in the production of pulp and fiber; the remaining 98% which is mostly of the sisal bole is largely regarded as waste. The bole’s high inulin fraction (2436%) is of particular significance due to its chemical functionality and relative ease of fermentation. utilisationThe objective of this study was to identify properties a...

6-Phosphogluconate is a much more effective inhibitor of the photosynthetic carboxylation enzyme, ribulose-1, 5-diphosphate carboxylase, than other sugar phosphates and sugar acids of the reductive and oxidative pentose phosphate cycles. The inhibition appears to be noncompetitive with ribulose 1,5-diphosphate. Since 6-phosphogluconate is unique to the oxidative cycle and inhibits at concentrat...