Oxidative Cyclization in Natural Product Biosynthesis
نویسندگان
چکیده
منابع مشابه
The direct oxidative diene cyclization and related reactions in natural product synthesis
The direct oxidative cyclization of 1,5-dienes is a valuable synthetic method for the (dia)stereoselective preparation of substituted tetrahydrofurans. Closely related reactions start from 5,6-dihydroxy or 5-hydroxyalkenes to generate similar products in a mechanistically analogous manner. After a brief overview on the history of this group of transformations and a survey on mechanistic and ste...
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the effects of solvent, temperature, time, weight percent of catalyst on the rate and mechanism of cyclization of natural rubber (nr) was studied in toluene and xylene solutions having tin tetra chloride catalyst (sncl4). iodometric titration show, with 8% sncl4 (based on polymer weight) cyclization occurs, leaving 27.4% of the total unsaturation. infrared spectra of cyclized nr show decreased ...
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ژورنال
عنوان ژورنال: Chemical Reviews
سال: 2016
ISSN: 0009-2665,1520-6890
DOI: 10.1021/acs.chemrev.6b00478