Subject index rearrangement

Recent Chem. Abstr. subject indexes list this topic under the heading Rearrangement, pinacol, it has also been called the pinacol-pinacolone rearrangement , or (rarely) the pinacolone rearrangement . 

Contents L. MINALE, G. CIMINO, S. DE STEFANO, and G. SODANO, Natural Products from Porifera - R. M. COATES, Biogenetic-Type Rearrangements of Terpenes - K. L RINEHART, JR., and L. S. SHIELD, Chemistry of the Ansamycin Antibiotics - A. FONTANA and C. TONIOLO, The Chemistry of Tryptophan in Peptides and Proteins -P. HEMMERICH, The Present Status of Flavin and Flavocoenzyme Chemistry - Author Index - Subject Index. 

The first principle in saving search time is to use fengle operations to serve multiple purposes. For example, references listed on sheets of paper can serve only one purpose, if one reference is listed right under the other. Lists on cards or sheets, with one reference per card or sheet, can serve several purposes. Abstracts can be added under each reference, and the cards can be rearranged by subject content, so that the typist can copy, entering items in the desired order on the final copy. A rearrangement of the cards by author can be used to produce an author index without extra work. 

Although a wide variety of heterocycle/side-chain combinations can be used in the Boulton-Katritzky rearrangement, among these, the most commonly used heterocycle has been the 1,2,4-oxadiazole. This is due to the relative ease with which it is synthesized as well as the fact that it has a very low index of aromaticity. Its heightened chemical reactivity has made it an important target for medicinal and materials chemists and the subject of multiple reviews in the last several years. ... 

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