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81.
Vallum Krishna Reddy Jun‐Ichi Onogawa Lakonda Nagaprasada Rao Tatsuo Oshikawa Masaki Takahashi Mitsuji Yamashita 《Journal of heterocyclic chemistry》2002,39(1):69-75
The synthesis of the novel 1‐(substituted phenoxy/phenyl)‐2‐phospholene and phospholane 1‐oxide derivatives, which are analogs of sugars having a phosphorus atom in place of the ring oxygen of normal sugars, is described. All of the synthesized derivatives are structurally characterized by multi nuclear NMR, mass, and IR spectral data, elemental and X‐ray crystallographic analyses. 相似文献
82.
Masashi Nakagawa Tatsuo Iwasa Satoshi Kikkawa Toshifumi Takao Yasutsugu Shimonishi Motoyuki Tsuda 《Photochemistry and photobiology》1997,65(1):187-191
Abstract— We determined the structure and site of fatty acid incorporated in octopus rhodopsin using a combination of fluorescence label and enzymatic cleavage methods in conjunction with fast-atom bombardment (FAB) mass spectrometry. A single peptide containing two adjacent cysteines, Cys337 and Cys338, was successfully isolated using the fluorescence from a dye conjugated to Cys345. The FAB mass spectrometric analysis of the peptide (323phe-340 phe) revealed that two palmitoyl groups are linked to Cys337 and Cys338 via thioester bonds in octopus rhodopsin as in bovine rhodopsin. 相似文献
83.
84.
Amornrat Lertworasirikul Yuuya Arikawa Tatsuo Kaneko Toshiyuki Kida Mitsuru Akashi 《Journal of polymer science. Part A, Polymer chemistry》2008,46(19):6489-6495
Highly flexible and transparent polylactic acids (PLAs) films were successfully prepared by manipulating their crystallization. The semicrystalline poly(L ‐lactic acid) (L) was blended with a noncrystalline poly(DL ‐lactic acid) (DL) together with diglycerol tetraacetate (DGTA). Optimal DGTA content to plasticize PLAs was about 17%. Addition of DL hindered the crystallization of the films. Tensile strengths of the films having DL content more than 5% were about 10 MPa while the elongations at break were boosted as DL content increased. Films having L/DL ratio of 50/50 showed elongations at break of 270%. Stretch ability and clarity of films containing 15–50% DL were fair although they were subjected to annealing at 60 °C for 1 h. © 2008 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 46: 6489–6495, 2008 相似文献
85.
Tamotsu Fujisawa Toshio Sato Tatsuo Kawara Masatoshi Kawashima Hirofumi Shimizu Yasuhiro Ito 《Tetrahedron letters》1980,21(22):2181-2184
Various organocuprates react with β-propiolactones to give β-substituted propionic acids in high yields. 相似文献
86.
Yoshiro Fukuoka Tatsuo Itoh 《International Journal of Infrared and Millimeter Waves》1984,5(6):793-801
A Schottky contact variable phase shifter constructed on either uniformly or periodically doped GaAs substrate is discussed in details. The device can operate at millimeter-wave frequencies with reasonably low attenuation.Work supported by the Office of Naval Research under Contract N00014-79-0053, Joint Service Electronics Program under Grant F49620-82-C-0033, and US Army Research Office under Contract DAAG29-81-K-0053. 相似文献
87.
Daniel Lehmann Marcio Soares Tatsuo Suwa 《Bulletin of the Brazilian Mathematical Society》1995,26(2):183-199
In this article we define and compute an index for a holomorphic vector field on a (possibly singular) subvariety of a complex manifold, provided the subvariety is a local complete intersection. This index reduces to the usual Poincaré-Hopf index in case the subvariety is smooth, and is equal more generally to the index defined in [GSV] and [SS]. 相似文献
88.
Tatsuo Suwa 《Mathematische Annalen》1979,240(3):281-286
89.
90.
In the oxidation of alkyl sulfides bearing acidic α-hydrogens eiher with phenobarbital induced rabbit liver microsomal cytochrome P-450, or with the Udenfriend's model system (ferous perchlorate/ascorbic acid/oxygen system), both S-dealkylation and S-monoxygenation took place concurrently. Meanwhile, in the oxidation of simple alkyl sulfides, steeoselective S-monooxygenation was found of occur predominantly. 相似文献