Cyclodiynes

An efficient and novel route to 3,3-bipyrroles, such as 203, involves the oxidative-cyclization of cyclodiyne 202 [147],... 

Bis(carbodiimido) complexes, with bis-Cp Ti(IV), 4, 583 Bis(catecholato)diboron, alkyne additions, 10, 727—728 Biscorroles, in organometallic synthesis, 1, 71—72 Bis(cyclodiyne) clusters, trirutheniums and triosmiums, 6, 772 Bis(cyclooctadienyl) chromium complexes, characteristics,... 

Gleiter [112] recently opened up access to a new group of superphanes containing anti-aromatic it-decks, which are stable only when coordinated to a transition metal. Reaction of cyclodiynes (132 and 134) with CpCo(CO)2 gives the intermediates 135 and 137 respectively, which yield the CpCo-stabilized superphanes 138 [113] and 140 [114] respectively after addition of a second equivalent of CpCo(CO)2 (Fig. 31a). Remarkably, under analogous conditions. 

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