Formation of upper rim acylated calix[4]arenes using a sacrificial zinc anode
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چکیده
منابع مشابه
Giant Chondroid Syringoma of the Upper Na-sal Orbital Rim
The present study describes clinical manifestation, histopathologic findings and differential diagnosis of a first-reported case of giant chondroid syringoma (CS) of the upper nasal orbital rim. A 35-yr-old man with cranial palsy (CP) and a tumor of 3×3×4 cm in the upper nasal orbital rim of the left eye was referred to the eye clinic. The tumor was reported to have developed gradually over the...
متن کاملSynthesis and capsule formation of upper rim substituted tetra-acrylamido calix[4]arenes.
Upper rim substituted tetraiodo calix[4]arenes are coupled to a variety of acrylamides using the palladium catalysed Heck reaction. Tetra-acrylamido upper rim substituted calix[4]arenes are obtained in good yields with exceptionally high stereoselectivity, to produce the all-trans isomers. Tetra-acrylamido calix[4]arenes derived from secondary acrylamides are shown to dimerise via eight hydroge...
متن کاملgiant chondroid syringoma of the upper na-sal orbital rim
the present study describes clinical manifestation, histopathologic findings and differential diagnosis of a first-reported case of giant chondroid syringoma (cs) of the upper nasal orbital rim. a 35-yr-old man with cranial palsy (cp) and a tumor of 3×3×4 cm in the upper nasal orbital rim of the left eye was referred to the eye clinic. the tumor was reported to have developed gradually over the...
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Rapid Sacrificial Germanium Etching Using Xenon Difluoride
We present a novel micromachining procedure employing the noble gas halide, xenon difluoride (XeF2), to rapidly undercut a sacrificial layer comprised of low-temperature deposited amorphous germanium (α-Ge). As a proof of concept, this process is utilized to fabricate electrostatically-actuated suspended Bragg mirrors applicable to wavelength-tunable surface-normal photonic devices. Exploiting ...
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ژورنال
عنوان ژورنال: Tetrahedron Letters
سال: 2005
ISSN: 0040-4039
DOI: 10.1016/j.tetlet.2005.09.007