J. CHEM. RESEARCH (S), 1999 343
Experimental
Received, 5th January 1999; Accepted, 10th February 1999
Paper E/9/00130A
Tetrahydrofuran (THF) was freshly distilled from sodium^
benzophenone prior to its use. MeOH was puri¢ed by distillation.
1
IR spectra were recorded on a PE-683 spectrometer, H NMR spectra
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with a JEOL PMX-60SI (60 MHz) spectrometer using TMS as
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1
3
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2
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5
53.
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We thank the National Natural Science Foundation of
China (Project No. 29872010), laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese
Academy of Science and NSF of Zhejiang Province, China
for ¢nancial support.
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«
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