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The volumes of this classic series, now referred to simply as
"Zechmeister" after its founder, L. Zechmeister, have appeared
under the Springer Imprint ever since the series' inauguration in
1938. The volumes contain contributions on various topics related
to the origin, distribution, chemistry, synthesis, biochemistry,
function or use of various classes of naturally occurring
substances ranging from small molecules to biopolymers. Each
contribution is written by a recognized authority in his field and
provides a comprehensive and up-to-date review of the topic in
question. Addressed to biologists, technologists, and chemists
alike, the series can be used by the expert as a source of
information and literature citations and by the non-expert as a
means of orientation in a rapidly developing discipline.
The chemistry of condensed tannins has hitherto represented a
relatively unattractive and therefore neglected area of study; one
in which the weight of research effort involved is invariably
disproportionate to the results achieved, in which the
participating schools generally confine their approach to specific
molecular species, and in which as yet no consensus has been
reached regarding likely precursors. The problems which beset those
engaged in this field represent a combined function of the abnormal
complexity of the gradational range of oligomers of increasing mass
and affinity for substrates which typify most extracts rich in
tannins, and the consequent problem of their isolation and
purification, the high chirality of tannin oligomers, the need to
contend with the phenomenon of dynamic 'rotational isomerism about
interflavanoid bonds in the IH n.m.r. spectral interpretation of
their derivatives, the lack of precise knowledge regarding the
points of bonding at nucleophilic centres, and the obvious
limitations of a hitherto predominantly analytical approach. The
last of these reflects the need for a general method of synthesis
which permits unambiguous proof of both structure and absolute
configuration also at higher oligomeric levels. With these
objectives in mind we initiated a purely synthetic approach based
on the premise that flavan-3,4-diols as source of electrophilic
flavanyl-4-carbocations, and flavan-3-0Is as nucleophiles (cf 1,2)
represent the prime initiators of a process of repetitive
condensation in which the immediate products also represent the
sequent nucleophilic substrates.
The volumes of this classic series, now referred to simply as
"Zechmeister" after its founder, L. Zechmeister, have appeared
under the Springer Imprint ever since the series' inauguration in
1938. The volumes contain contributions on various topics related
to the origin, distribution, chemistry, synthesis, biochemistry,
function or use of various classes of naturally occurring
substances ranging from small molecules to biopolymers. Each
contribution is written by a recognized authority in his field and
provides a comprehensive and up-to-date review of the topic in
question. Addressed to biologists, technologists, and chemists
alike, the series can be used by the expert as a source of
information and literature citations and by the non-expert as a
means of orientation in a rapidly developing discipline.
One of the most gripping images from the 1960s captures the slight
figure of Dr. S. I. Hayakawa scrambling onto a sound truck parked
in front of San Francisco State College amid campus unrest.
Hayakawa had hoped to use this soapbox to address the assembled
demonstrators, but instead he ended up ripping out speaker wires
and halting an illegal campus demonstration--or denying
first-amendment rights to the crowd, depending on your perspective.
Indeed, Hayakawa's entire life defies simplistic labels, and his
ability to be categorized largely depends on personal
perspective.
This intimate and detailed biography draws on interviews with
friends and family members, as well as Hayakawa's own papers and
journals, to bring this controversial and fascinating figure to
life. He was an enigma to colleagues as well as adversaries, a
Republican senator who consistently bucked his party's ideals with
his support of the women's movement, abortion rights, and even
Ronald Reagan's search for a female running mate. The son of
Japanese immigrants, born and raised in Canada before moving to the
United States, Hayakawa emerges here as a complex and complicated
figure. His blend of heritage, politics, artistic inclination, and
intellectual achievement makes him quintessentially American.
Visit the author's Web site for bibliographic notes.
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