From Grignard coupling

Polythiophene, as obtained from Grignard-coupling polymerization from dibromothiophene, was vacuum deposited on various substrates and studied by electron diffraction by Yamamoto el al. [51]. They report diffraction patterns obtained from a single crystalline region, showing 44 distinct reflections of hkO-type. The indexing is in accordance with the a and 6-axes values obtained by Mo el al. Curiously the crystal is oriented with its c-axis perpendicular to the substrate, and the c-axis parameter could not be determined. The crystal is reported to deteriorate under the electron beam. 

Banning,43 who synthesized 1,4-naphthalene oligomer using a Grignard coupling reaction with 1,4-dibromonaphthalene as the starting material. The IR spectra of PNT-N prepared in this work all have this absorption at 699 cm-1. Films collected from different VDP reactions always exhibit this specific absorption, between 696-699 cm-1. 

To improve the preparative method of phospha sugars from sugar starting materials [21,22], the Arbzov reaction and Grignard coupling reaction have been applied to a reaction of 1,4-dibromobutane. The reaction of 1,4-dibromobutane (53) with dimethyl phenylphosphonite to give ethyl (4-bromobutyl)phenylphosphinate (54) and successive intramolecular substitution of the 4-bromo substituent with phosphinyl anion affords 1-phenyl -phospholane 1-oxide (56a) in 40% yield. It can also be prepared from... 

The 2- and 3-phospholenes are prepared by the McCormack reaction and are good candidates as starting materials for the preparation of five-and six-membered phosphorus heterocycles [25-27]. From l-methoxy-3-methyl-2-phospholene 64 or l-methoxy-2,3-diacetoxy-3-methylphospholane 67, l-aryoxy-3-methyl-2-phospholenes 66a-c (Scheme 19), or l-aryoxy-2,3-diacetoxy-3-methylphospholane 69 (Scheme 20) with a substituted phenyl group at phosphorus, or l-aryl-3-methyl-2-phospholenes 71a-g (Scheme 21) are prepared by a substitution reaction and/or a Grignard coupling reaction [28,29]. 

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