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The reaction of AlH<jats:sub>3<\/jats:sub><jats:bold>\u22c5<\/jats:bold>NMe<jats:sub>3<\/jats:sub> with [C<jats:sub>4<\/jats:sub>H<jats:sub>3<\/jats:sub>NH(2\u2010CH<jats:sub>2<\/jats:sub>NH<jats:italic>t<\/jats:italic>Bu)] in diethyl ether generated a dimeric aluminum hydride compound, [{[C<jats:sub>4<\/jats:sub>H<jats:sub>3<\/jats:sub>N(2\u2010CH<jats:sub>2<\/jats:sub>N<jats:italic>t<\/jats:italic>Bu)]AlH}<jats:sub>2<\/jats:sub>] (<jats:bold>1<\/jats:bold>). The structure of <jats:bold>1<\/jats:bold> was confirmed by spectroscopy of a deuterated analogue of <jats:bold>1<\/jats:bold> with an Al\uf8ffD function. Direct treatment of [C<jats:sub>4<\/jats:sub>H<jats:sub>3<\/jats:sub>NH(2\u2010CH<jats:sub>2<\/jats:sub>NH<jats:italic>t<\/jats:italic>Bu)] with LiAlH<jats:sub>4<\/jats:sub> in diethyl ether resulted in colorless crystals of [{Li[\u03bc\u2010\u03b7<jats:sup>1<\/jats:sup>:\u03b7<jats:sup>5<\/jats:sup>\u2010C<jats:sub>4<\/jats:sub>H<jats:sub>3<\/jats:sub>N(2\u2010CH<jats:sub>2<\/jats:sub>N<jats:italic>t<\/jats:italic>Bu)]<jats:sub>2<\/jats:sub>Al}<jats:sub>2<\/jats:sub>] (<jats:bold>2<\/jats:bold>) in 80\u2009% yield after recrystallization from a toluene solution. The \u03bc\u2010\u03b7<jats:sup>1<\/jats:sup>:\u03b7<jats:sup>5<\/jats:sup>\u2010pyrrolyl protons exhibit high\u2010field shifts at <jats:italic>\u03b4<\/jats:italic>=5.73, 6.15, and 6.72 comparable to a similar \u03b7<jats:sup>5<\/jats:sup>\u2010bonding mode in the literature. Treatment of <jats:bold>1<\/jats:bold> with 1\u2005equiv acetone oxime or acetone in dichloromethane gave [{[C<jats:sub>4<\/jats:sub>H<jats:sub>3<\/jats:sub>N(2\u2010CH<jats:sub>2<\/jats:sub>N<jats:italic>t<\/jats:italic>Bu)]Al[<jats:italic>\u03f0O<\/jats:italic>,<jats:italic>\u03f0N<\/jats:italic>\u2010(ON\uf8feCMe<jats:sub>2<\/jats:sub>)]}<jats:sub>2<\/jats:sub>] (<jats:bold>3<\/jats:bold>) and [{[C<jats:sub>4<\/jats:sub>H<jats:sub>3<\/jats:sub>N(2\u2010CH<jats:sub>2<\/jats:sub>N<jats:italic>t<\/jats:italic>Bu)]Al(O\uf8ffCHMe<jats:sub>2<\/jats:sub>)}<jats:sub>2<\/jats:sub>] (<jats:bold>4<\/jats:bold>) in 67\u2009% and 60\u2009% yield, respectively. Compounds <jats:bold>1<\/jats:bold>\u2013<jats:bold>4<\/jats:bold> have been characterized by X\u2010ray diffractometry and were used as catalysts for \u03b5\u2010caprolactone polymerization.<\/jats:p>","DOI":"10.1002\/chem.200800679","type":"journal-article","created":{"date-parts":[[2008,9,12]],"date-time":"2008-09-12T06:21:14Z","timestamp":1221200474000},"page":"9747-9753","source":"Crossref","is-referenced-by-count":30,"title":["Aluminum Compounds Containing \u03b7<sup>1<\/sup>\u2010 and\/or \u03b7<sup>5<\/sup>\u2010Bidentate Dianionic Pyrrolyl\u2013Methylamide Ligands"],"prefix":"10.1002","volume":"14","author":[{"given":"Ya\u2010Chi","family":"Chen","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Che\u2010Yu","family":"Lin","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chun\u2010Yin","family":"Li","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jui\u2010Hsien","family":"Huang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ling\u2010Chueh","family":"Chang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ting\u2010Yu","family":"Lee","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2008,10,21]]},"reference":[{"key":"e_1_2_6_1_2","unstructured":"\u00a0"},{"key":"e_1_2_6_2_2","doi-asserted-by":"publisher","DOI":"10.1080\/00397919808003067"},{"key":"e_1_2_6_3_2","doi-asserted-by":"publisher","DOI":"10.1002\/marc.1989.030100612"},{"key":"e_1_2_6_4_2","doi-asserted-by":"publisher","DOI":"10.1021\/ja00959a027"},{"key":"e_1_2_6_5_2","unstructured":"\u00a0"},{"key":"e_1_2_6_6_2","doi-asserted-by":"publisher","DOI":"10.1002\/ange.200503176"},{"key":"e_1_2_6_6_3","doi-asserted-by":"publisher","DOI":"10.1002\/anie.200503176"},{"key":"e_1_2_6_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.tetlet.2005.05.052"},{"key":"e_1_2_6_8_2","doi-asserted-by":"publisher","DOI":"10.1039\/b409193k"},{"key":"e_1_2_6_9_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0040-4039(01)02402-9"},{"key":"e_1_2_6_10_2","unstructured":"\u00a0"},{"key":"e_1_2_6_11_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jallcom.2007.04.246"},{"key":"e_1_2_6_12_2","unstructured":"T.\u2005A.Johnson D.\u2005E.Dedrick R.\u2005D.Stephens J.\u2005P.Chan (General Motors Detroit MI) US\u2010A 20070178042 2007;"},{"key":"e_1_2_6_13_2","unstructured":"G.Sandrock J.Reilly J.Graetz J.\u2005E.Wegrzyn (Brookhaven National Laboratory Upton NY) US\u2010A 20070025908 2007;"},{"key":"e_1_2_6_14_2","doi-asserted-by":"publisher","DOI":"10.1021\/ic062032e"},{"key":"e_1_2_6_15_2","doi-asserted-by":"publisher","DOI":"10.1021\/ja01197a061"},{"key":"e_1_2_6_16_2","unstructured":"\u00a0"},{"key":"e_1_2_6_17_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0277-5387(00)00455-1"},{"key":"e_1_2_6_18_2","doi-asserted-by":"publisher","DOI":"10.1351\/pac199870020415"},{"key":"e_1_2_6_19_2","unstructured":"\u00a0"},{"key":"e_1_2_6_20_2","doi-asserted-by":"publisher","DOI":"10.1002\/ange.200504337"},{"key":"e_1_2_6_20_3","doi-asserted-by":"publisher","DOI":"10.1002\/anie.200504337"},{"key":"e_1_2_6_21_2","doi-asserted-by":"publisher","DOI":"10.1002\/chem.200500989"},{"key":"e_1_2_6_22_2","doi-asserted-by":"publisher","DOI":"10.1021\/om050698v"},{"key":"e_1_2_6_23_2","doi-asserted-by":"publisher","DOI":"10.1016\/0022-328X(94)05132-U"},{"key":"e_1_2_6_24_2","doi-asserted-by":"publisher","DOI":"10.1021\/om990562v"},{"key":"e_1_2_6_25_2","doi-asserted-by":"publisher","DOI":"10.1002\/(SICI)1521-3757(20000515)112:10<1885::AID-ANGE1885>3.0.CO;2-K"},{"key":"e_1_2_6_25_3","doi-asserted-by":"publisher","DOI":"10.1002\/(SICI)1521-3773(20000515)39:10<1815::AID-ANIE1815>3.0.CO;2-W"},{"key":"e_1_2_6_26_2","unstructured":"\u00a0"},{"key":"e_1_2_6_27_2","doi-asserted-by":"publisher","DOI":"10.1002\/ange.19931050625"},{"key":"e_1_2_6_27_3","doi-asserted-by":"publisher","DOI":"10.1002\/anie.199308861"},{"key":"e_1_2_6_28_2","doi-asserted-by":"publisher","DOI":"10.1021\/om000989y"},{"key":"e_1_2_6_29_2","doi-asserted-by":"publisher","DOI":"10.1021\/om00005a042"},{"key":"e_1_2_6_30_2","doi-asserted-by":"publisher","DOI":"10.1039\/b209669m"},{"key":"e_1_2_6_31_2","unstructured":"\u00a0"},{"key":"e_1_2_6_32_2","doi-asserted-by":"publisher","DOI":"10.1002\/ange.19971092325"},{"key":"e_1_2_6_32_3","doi-asserted-by":"publisher","DOI":"10.1002\/anie.199726401"},{"key":"e_1_2_6_33_2","doi-asserted-by":"publisher","DOI":"10.1021\/ic000636r"},{"key":"e_1_2_6_34_2","unstructured":"\u00a0"},{"key":"e_1_2_6_35_2","first-page":"37","volume":"22","author":"Kovar R. 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