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Probationary Americans examines contemporary immigration rules and how they affect the make-up of immigrant communities. The authors' key argument is that immigration policies place race and class as important criteria for gaining entry to the United States, and in doing so, alter the makeup of America's immigrant communities.
Probationary Americans examines contemporary immigration rules and how they affect the make-up of immigrant communities. The authors' key argument is that immigration policies place race and class as important criteria for gaining entry to the United States, and in doing so, alter the makeup of America's immigrant communities.
Directed metalation is recognized as one of the most useful methodologies for the regio- and stereoselective generation of organometallic species, the generation of which necessarily leads to the selective formation of organic products. Cyclometalation using Li, Mn, and Pd, and directed hydrometalation and carbometalation using Al and Zn, have been utilized for regio- and/or stereoselective synthesis for decades. Recently, a new chelation-assisted methodology has been developed not only for controlling regio- and stereoselectivity of reactions, but also for accelerating reactions. In particular, chelation-methodology has been utilized as a new activation method, in which a carbon-metal bond is generated directly from a C-H bond; a reaction rarely achieved using conventional methods. A wide variety of catalytic functionalization reactions of C-H bonds by the utilization of a chelation, have been developed recently and are comprehensively discussed in this book by leading experts. In addition, new approaches to directed hydrometalation and directed carbometalation as a key step are also discussed. A unique stereo- and regioselective hydroformylation has been developed through the utilization of directed hydrometalation. The regioselective Mizoroki-Heck reaction is another example in which directed carbometalation can be used to achieve a high regioselectivity. These examples emphasize how these innovative methodologies are contributing to different fields of chemistry.
Directed metalation is recognized as one of the most useful methodologies for the regio- and stereoselective generation of organometallic species, the generation of which necessarily leads to the selective formation of organic products. Cyclometalation using Li, Mn, and Pd, and directed hydrometalation and carbometalation using Al and Zn, have been utilized for regio- and/or stereoselective synthesis for decades. Recently, a new chelation-assisted methodology has been developed not only for controlling regio- and stereoselectivity of reactions, but also for accelerating reactions. In particular, chelation-methodology has been utilized as a new activation method, in which a carbon-metal bond is generated directly from a C-H bond; a reaction rarely achieved using conventional methods. A wide variety of catalytic functionalization reactions of C-H bonds by the utilization of a chelation, have been developed recently and are comprehensively discussed in this book by leading experts. In addition, new approaches to directed hydrometalation and directed carbometalation as a key step are also discussed. A unique stereo- and regioselective hydroformylation has been developed through the utilization of directed hydrometalation. The regioselective Mizoroki-Heck reaction is another example in which directed carbometalation can be used to achieve a high regioselectivity. These examples emphasize how these innovative methodologies are contributing to different fields of chemistry.
This is the most comprehensive and up-to-date reference work on Asian Americans, comprising three volumes that address a broad range of topics on various Asian and Pacific Islander American groups from 1848 to the present day. This three-volume work represents a leading reference resource for Asian American studies that gives students, researchers, librarians, teachers, and other interested readers the ability to easily locate accurate, up-to-date information about Asian ethnic groups, historical and contemporary events, important policies, and notable individuals. Written by leading scholars in their fields of expertise and authorities in diverse professions, the entries devote attention to diverse Asian and Pacific Islander American groups as well as the roles of women, distinct socioeconomic classes, Asian American political and social movements, and race relations involving Asian Americans. Presents information on Asian Americans and individual Asian ethnic groups that provides comprehensive overviews of the respective groups Includes special topic entries that contain source information regarding major historical events Comprises work from a truly outstanding list of contributors that include scholars, journalists, writers, community activists, graduate students, and other specialists Expands the boundaries of Asian American studies through innovative entries that address transnationalism, gender and sexuality, and inter- and cross-disciplinarity
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