Navigation

0 Hits

  • Previous / Next

You are using Science Of Synthesis as a Guest.
Please login to access the full content or check if you have access via
2.11.10.2.2 Variation 2: Reactions of Bis(η5-cyclopentadienyl)metal(IV) Derivatives with α- and γ-Hetero-Substituted Alkyl- and Alkenyllithiums

DOI: 10.1055/sos-SD-002-00797

Negishi, E.-i.; Takahashi, T.Science of Synthesis, (20032819.

The scope of the migratory insertion reactions of bis(η5-cyclopentadienyl)organozirconium derivatives with α-hetero-substituted organometals has been substantially expanded through the use of α-halo-substituted alkyl- and alkenyllithiums, such as those used in the formation of 516521 (Scheme 186).[‌151‌,‌409‌] Some related reactions of bis(η5-cyclopentadi­enyl)organohafnium derivatives, which can also be used to give 516, and those of γ-halo­alkynyllithiums, such as 522 used in the formation of allene 523 and enyne 524, are also noteworthy (Scheme 186).[‌151‌]

Meeeee 888 Meeeeeeee Meeeeeeee Meeeeeeee ee Mee(η8-eeeeeeeeeeeeeeee)eeeeeeeeeee Meeeeeeeeee eeee α- eee γ-Meeeee-Meeeeeeeeee Meeeeeeeeeeeee[‌888‌,‌888‌]

Meeeeeeeeee 888

M M8 M M8 Meeee (%) Mee
Me Me Me Me 88 [‌888‌]
Me Me Me Me 88 [‌888‌]
Me Me Me Me 88 [‌888‌]
Me Me Me Me 88 [‌888‌]
Me 8-Mee 8-Mee Me 88 [‌888‌]
Me MM=MM(MM8)8Me Me Me 88 [‌888‌]

Mee eeeeeeeee eeeeeeeee eeeeeeeee eeeeeeeee eeeee, ee eeee ee eeeee eeee eeeeeeeeeee,[‌888‌] eeee eeee eeeeeeeeeee eeeeeeeeeeee ee eeeee eeeeeeee eeeeeeeeeeeee, e.e. 888 eeee ee eee eeeeeeeee ee 888 eee 888 (Meeeee 888).[‌888‌,‌888‌,‌888‌‌888‌]

Meeeee 888 Meeeeeeee Meeeeeeee Meeeeeeee ee Meeeeeee Meeeeeeeeeeee[‌888‌,‌888‌,‌888‌,‌888‌‌888‌]

Mee eeeeeeee ee eeeeeee 8-eeeeee-8-eeeeeeeeee-8-eeeee eeee eeeeeeee eeeeeeeeeeeee 888 eee 888 eee eeee eeeeeee ee eee eeeeeeeee ee eee eeeeeeee eeeeeeee ee eeeeeeeeeeeeeeeeeeeeee 888[‌888‌] eee eee eeeeeeeee eeeeeeeee ee eeeeeeeee eee eeeeeeeeeee, 888 eee 888, eeeeeeeeeeee (Meeeee 888).[‌888‌]

Meeeee 888 Meeeeeeee ee Me- ee Meeeeeeee Meeeeeeeeee[‌888‌,‌888‌]

Meeeeee eeeeeeeeeee eee eeeeeeeeeee eeeeee eeeeeeeee ee eeee eeee ee eeeeeeee ee eee eee ee eeeeeee (M)- ee (M)-8-eeeeeeeeee-8,8-eeeeeee [(M)- ee (M)-888], eeeeeeeee ee eeee ee eee eeeeeeeee ee (M)- ee (M)-8,8-eeeeeeeeeee-8-eee, eeeeeeeeeeee, eee eee eeeeeeeee ee M- ee M-8,8-eeeeee (M)- ee (M)-888 eee 8,8,8-eeeeeee 888 (Meeeee 888).[‌888‌,‌888‌]

Meeeee 888 Meeeeeeee ee M- ee M-8,8-Meeeee eee 8,8,8-Meeeeee[‌888‌,‌888‌]

References


Cookie-Einstellungen